Showing papers on "Alkoxy group published in 2006"

Ring-opening polymerization of lactide with group 3 metal complexes supported by dianionic alkoxy-amino-bisphenolate ligands: combining high activity, productivity, and selectivity.

Abstract: A series of new alkoxy-amino-bis(phenols) (H2L 1-6) has been synthesized by Mannich condensations of substituted phenols, formaldehyde, and amino ethers or diamines. The coordination properties of these dianionic ligands towards yttrium, lanthanum, and neodymium have been studied. The resulting Group 3 metal complexes have been used as initiators for the ring-opening polymerization of rac-lactide to provide poly(lactic acid)s (PLAs). The polymerizations are living, as evidenced by the narrow polydispersities of the isolated polymers, together with the linear natures of number average molecular weight versus conversion plots and monomer-to-catalyst ratios. Complex [Y(L6){N(SiHMe2)2}(THF)] (17) polymerized rac-lactide to heterotactic PLA (Pr = 0.90 at 20 degrees C) and meso-lactide to syndiotactic PLA (Pr = 0.75 at 20 degrees C). The in situ formation of [Y(L6)(OiPr)(THF)] (18) from 17 and 2-propanol resulted in narrower molecular weight distributions (PDI = 1.06). With complex 18, highly heterotactic PLAs with narrow molecular weight distributions were obtained with high activities and productivities at room temperature. The natures of the ligand substituents were shown to have a significant influence on the degree of control of the polymerizations, and in particular on the tacticity of the polymer.

Organic electroluminescent element

Abstract: PROBLEM TO BE SOLVED: To provide an organic electroluminescent element emitting light with high luminance and excellent light emission efficiency SOLUTION: The organic electroluminescent element in which an organic germanium compound comprising an aromatic substituent is expressed by a formula (1) is provided In the formula, L: 0-2, m: 1-3, n: 1-3, k: 0-3; Ar: an aryl group or a complex aryl group; R: an alkyl group, a cyclo alkyl group, an alkenyl group, an aralkyl group, an alkoxy group or an aryl oxy group; X: the alkyl group, the cyclo alkyl group, the alkenyl group, the aralkyl group, the alkoxy group or the aryl oxy group COPYRIGHT: (C)2006,JPO&NCIPI

Active energy ray-curable ink-jet ink

Abstract: Disclosed is an active energy ray-curable ink-jet ink comprising a polymerizable monomer and a photopolymerization initiator, wherein the polymerizable monomer contains a monofunctional monomer in an amount of 50% by weight or more based on the total amount of the polymerizable monomer and the photopolymerization initiator is represented by the following formula (1) or (2): (1) wherein R1, R2, R3 and R4 independently represent a hydrogen atom, a halogen atom, a hydroxyl group, an amino group, an alkyl group, an alkoxy group or a phenyl group; and n represents an integer of 2 to 10; and (2) wherein R1, R2 and R3 independently represent a hydrogen atom, a halogen atom, a hydroxyl group, an amino group, an alkyl group, an alkoxy group or a phenyl group.

Cyclopentadienyl type hafnium and zirconium precursors and use thereof in atomic layer deposition

Abstract: Precursors suitable for chemical vapour deposition, especially ALD, of hafnium oxide or zirconium oxide, have the general formula (I): (R1Cp)2MR2 R3 wherein Cp represents a cyclopentadienyl ligand, R1 is H or a substituting alkyl group, alkoxy group or amido group of the Cp ligand, R2 and R3 is an alkyl group, an alkoxy group or an amido group and M is hafnium or zirconium.

Rate constant estimation for C1 to C4 alkyl and alkoxyl radical decomposition

Abstract: Rate coefficients for alkyl and alkoxy radical decomposition are important in combustion, biological, and atmospheric processes. In this paper, rate constant expressions for C1C4 alkyl and alkoxy radicals decomposition via β-scission are recommended based on the reverse, exothermic reaction, the addition of a hydrogen atom or an alkyl radical to an olefin or carbonyl species with the decomposition reaction calculated using microscopic reversibility. The rate expressions have been estimated based on a wide-range study of available experimental data. Rate coefficients for hydrogen atom and alkyl radical addition to an olefin show a strong temperature curvature. In addition, it is found that there is a correlation between the activation energy for addition and (i) the type of atom undergoing addition and (ii) whether this radical adds to the internal or terminal carbon atom of the olefin. Rate coefficients for alkoxy radical decomposition show a strong correlation to the ionization potential of the alkyl radical leaving group and on the enthalpy of reaction. It is shown that the activation energy for alkyl radical addition to a carbonyl species can be estimated as a function of the alkyl radical ionization potential and enthalpy of reaction. © 2006 Wiley Periodicals, Inc. Int J Chem Kinet 38: 250–275, 2006

5-alkoxyalkyl-6-alkyl-7-amino-azolopyrimidines, method for their production, their use for controlling pathogenic fungi and agents containing said substances

Abstract: The invention relates to 5-alkoxyalkyl-6-alkyl-7-amino-azolopyrimidines of formula (I), in which the substituents are defined as follows: R1 represents alkyl, cycloalkyl, alkenyl, alkynyl, alkoxyalkyl, cyanoalkyl and benzyloxyalkyl, the groups in the aliphatic or aromatic part being unsubstituted or substituted by one to three groups Ra, where the latter represents halogen, cyano, nitro, hydroxy, cycloalkyl, alkoxy, alkylthio and NRARB, (RA and RB representing hydrogen and alkyl; R2 represents alkoxyalkyl, phenoxyalkyl, alkylthioalkyl and phenylthioalkyl, said groups being unsubstituted or substituted according to the description; R3 represents hydrogen and alkyl; A represents N and C-RA. The invention also relates to a method for producing said compounds, to agents containing the latter and to their use for controlling plant-pathogenic fungi.

Original plate of planographic printing plate

Abstract: PROBLEM TO BE SOLVED: To provide a positive original plate of a planographic printing plate for an infrared laser which has excellent chemical resistance and wide development latitude SOLUTION: The positive original plate of the planographic printing plate contains (A) a polymer compound having a structure unit denoted by general formula (1) and a phenol hydroxyl group in a molecule, (B) a light heat conversion agent, and (C) a recording layer containing an amine compound having a methylol group or an alkoxy methyl group on a support In the general formula (1), R 1 denotes a hydrogen atom or an arbitrary substitution group, X denotes a bivalent group, and R 2 has a non-shared electron versus coupling part and a hydrogen connectable hydrogen atom and denotes a monovalent substitution group capable of forming thermally reversible two or more hydrogen connection COPYRIGHT: (C)2006,JPO&NCIPI

On the reactivity of surface methoxy species in acidic zeolites.

Abstract: The in situ preparation and isolation of surface methoxy species on acidic zeolites are followed by further investigations of their reactivity in heterogeneously catalyzed reactions. For the first time, the following solid-state NMR evidence for the high reactivity of surface methoxy species has been obtained: (i) Surface methoxy species react readily with ammonia on acidic zeolites at room temperature, by which methylamines and methylammonium cations are formed. (ii) The transformation of surface methoxy species to other alkoxy species can be achieved by the reaction of surface methoxy species and corresponding alkyl halides on acidic zeolites. (iii) Surface methoxy species react readily with hydrochloride, giving methyl chloride as the sole product. (iv) The classic Koch carbonylation reaction and Ritter reaction in solution can be performed with surface methoxy species on acidic zeolites. (v) Carbon monoxide and carbon dioxide are produced by the oxidation of surface methoxy species in the presence of...

Photophysical and theoretical investigations of oligo(p-phenyleneethynylene)s: effect of alkoxy substitution and alkyne-aryl bond rotations.

Abstract: The unique photophysical, conformational, and electronic properties of two model phenyleneethynylene-based rigid rod molecular systems, possessing dialkoxy substitutions, are reported in comparison with an unsubstituted system. Twisting of the phenyl rings along the carbon−carbon triple bond is almost frictionless in these systems giving rise to planar as well as several twisted ground-state conformations, and this results in broad structureless absorption in the spectral region of 250−450 nm. In the case of 1,4-bis(phenylethynyl)benzene, a broad absorption band was observed due to the HOMO−LUMO transition, whereas dialkoxy-substituted compounds possess two well-separated bands. Dialkoxy substitution in the 2,5-position of the phenyl ring in phenyleneethynylenes alters its central arene π-orbitals through the resonance interaction with oxygen lone pairs resulting in similar orbital features for HOMO and HOMO−1/HOMO−2. Electronic transition from the low-lying HOMO−1/HOMO−2 orbital to LUMO results in the hi...

Nonaqueous synthesis of metal oxide nanoparticles : review and indium oxide as case study for the dependence of particle morphology on precursors and solvents

Abstract: Nonaqueous solution routes to metal oxide nanoparticles are a valuable alternative to the well-known aqueous sol-gel processes, offering advantages such as high crystallinity at low temperatures, robust synthesis parameters and ability to control the crystal growth without the use of surfactants. In the first part of the review, we give an overview of the various nonaqueous routes to metal oxides, their surface functionalization and their assembly into well-defined nanostructures. However, we will strongly focus on surfactant-free processes developed in our group. Within the various reaction systems such as metal halides—benzyl alcohol, metal alkoxides—benzyl alcohol, metal alkoxides—ketones, metal acetylacetonates—benzyl alcohol and metal acetylacetonates—benzylamine we will discuss representative examples in order to show the versatility of this approach. The careful characterization of the organic species in the final reaction mixtures provides information about possible condensation mechanisms. Depending on the system several reaction pathways have been postulated: (i) elimination of organic ethers as result of condensation between two metal alkoxide precursors; (ii) C–C bond formation between the alkoxy ligand of the metal alkoxide precursor and the solvent benzyl alcohol under formation of a metal hydroxyl species, which can undergo further condensation; (iii) ketimine and aldol-like condensation steps, which in the metal acetylacetonate systems are preceded by a solvolysis of the precursor, involving C–C bond cleavage.

Ti, Ta, Hf, Zr and related metal silicon amides for ALD/CVD of metal-silicon nitrides, oxides or oxynitrides

Abstract: An organometallic complex represented by the structure: wherein M is a metal selected from Group 4 of the Periodic Table of the Elements and R1-4 can be same or different selected from the group consisting of dialkylamide, difluoralkylamide, hydrogen, alkyl, alkoxy, fluoroalkyl and alkoxy, cycloaliphatic, and aryl with the additional provision that when R1 and R2 are dialkylamide, difluoralkylamide, alkoxy, fluoroalkyl and alkoxy, they can be connected to form a ring. Related compounds are also disclosed. CVD and ALD deposition processes using the complexes are also included.

Stereoselective C-glycosylation reactions of pyranoses: the conformational preference and reactions of the mannosyl cation.

Abstract: A systematic study of C-glycosylations of acetals related to mannose and other pyranoses was conducted. The C-5 alkoxyalkyl group provides only a modest influence on stereoselectivity. On the other hand, studies of pentopyranoses bearing alkoxy groups at C-2, C-3, and C-4 showed that the alkoxy groups exerted powerful influences on selectivity. In the case of mannose, the high alpha selectivity observed with C-mannosylation was reversed to high beta selectivity if the C-5 alkoxyalkyl group were removed. An analysis of the conformational preferences of the intermediate oxocarbenium ions, including the mannosyl cation, as well as consideration of steric effects that develop in the transition states for nucleophilic attack provide explanations for these phenomena.

Helical Stacking Tuned by Alkoxy Side Chains in π-Conjugated Triphenylbenzene Discotic Derivatives

Abstract: We report on the synthesis and self-assembly of a new series of discotic molecules containing triphenylbenzene as the core and alkoxy side chain with varying length. It was found that compounds 3 a-c, 4 b and 5 b could form stable gels in several apolar solvents. Transmission electron microscopy (TEM) images revealed that their morphologies were very different for the different alkoxy-substituted organogels. In toluene or hexane, 3 b and 3 c resulted in both left- and right-handed helical fibers, whereas 3 a resulted in straight rigid fibers; 4 b and 5 b resulted in most straight fibers with a few twisted fibers. The results from FT-IR and UV/Vis absorption spectroscopy indicated that the hydrogen bonding and pi-pi interactions were the main driving forces for the formation of the self-assembled gels. Further detailed analysis of their aggregation modes were conducted by UV-visible absorption spectra and X-ray diffraction (XRD) measurements. Based on these findings, the influence of these peripheral alkoxy substituents on the gel formation and the aggregation mode were discussed. The special enhanced fluorescent emissions, which resulted from aggregation, were also found in the gel phase.

Heterocyclic Amide Derivatives Useful as Microbiocides

Abstract: The invention relates to a fungicidally active compound of formula (I): where Het is a 5- or 6-membered heterocyclic ring containing one to three heteroatoms, each independently selected from oxygen, nitrogen and sulphur, the ring being substituted by the groups R6, R7 and R8; R1 is hydrogen, C1-4 alkyl, C1-4 haloalkyl, C1-4 alkoxy, C1-4 haloalkoxy, CH2C≡CR9, CH2CR10=CHR11, CH=C=CH2 or COR12; R2 and R3 are each, independently, hydrogen, halo, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl or C1-4 haloalkoxy; R4 and R5 are each independently selected from halo, cyano and nitro; or one of R4 and R5 is hydrogen and the other is selected from halo, cyano and nitro; R6, R7 and R8 are each, independently, hydrogen, halo, cyano, nitro, C1-4 alkyl, C1-4 haloalkyl, C1-4 alkoxy(C1-4)alkyl, C1-4 haloalkoxy(C1-4)alkyl or C1-4 haloalkoxy, provided that at least one of R6, R7 and R8 is not hydrogen; R9, R10 and R11 are each, independently, hydrogen, halo, C1-4 alkyl, C1-4 haloalkyl or C1-4 alkoxy(C1-4)alkyl; and R12 is hydrogen, C1-6 alkyl, C1-6 haloalkyl, C1-4 alkoxy(C1-4 )alkyl, C1-4 alkylthio(C1-4)- alkyl, C1-4 alkoxy or aryl; to the preparation of these compounds, to novel intermediates used in the preparation of these compounds, to agrochemical compositions which comprise at least one of the novel compounds as active ingredient, to the preparation of the compositions mentioned and to the use of the active ingredients or compositions in agriculture or horticulture for controlling or preventing infestation of plants by phytopathogenic microorganisms, preferably fungi.

Palladium-catalyzed synthesis of aryl ketones by coupling of aryl bromides with an acyl anion equivalent.

Abstract: Palladium-catalyzed couplings of aryl bromides with N-tert-butylhydrazones as acyl anion equivalents to form aryl ketones are reported. The coupling process occurs at the C-position of hydrazones to form N-tert-butyl azo compounds. Isomerization of these azo compounds to the corresponding hydrazones, followed by hydrolysis, gave the desired mixed alkyl aryl ketones. The selectivity of C- versus N-arylation was strongly influenced by the substituent on nitrogen. Arylation at carbon occurred with N-tert-butylhydrazones, whereas N-arylation occurred with N-arylhydrazones. The arylation of hydrazones containing primary and secondary alkyl groups, as well as aryl groups, gave the desired ketones in good yields after hydrolysis. Functional groups on the aromatic ring, such as alkoxy, cyano, trifluoromethyl, carboalkoxy, carbamoyl, and keto groups, were tolerated. This reaction likely occurs by C−C bond-forming reductive elimination from an intermediate containing an η1-diazaallyl ligand.

Organosilanes and their preparation and use in elastomer compositions

Abstract: A sulfEdosilane of the Formula (1) wherein each R, which may be the same or different, represents an alkyl or aryl group having 1 to 18 carbon atoms, R' represents an alkyl, hydroxyalkyl, or alkoxyalkyl group having 1 to 8 carbon atoms, each A independently represents the same or different divalent organic group having 1 to 18 carbon atoms and x has a value in the range 2 to 10... A coupling agent composition comprising sulfidosilanes of the formula Y´Y2Si - A - Sx - A - SiY2Y' wherein each Y is selected from alkyl or aryl groups having 1 to 18 carbon atoms and alkoxy groups having 1 to 8 carbon atoms, each Y' is selected from hydroxyl or alkoxy, hydroxyalkoxy, or alkoxyalkoxy groups having 1 to 8 carbon atoms, each A independently represents the same or different divalent organic group having 1 to 18 carbon atoms and x has an average value in the range 2 to 5 characterized in that the average number of alkoxy groups per sulfEdosilane molecule is less than 2 and at least 0.1 % by weight of the sulfidosilane in the composition A process for the preparation of a coupling agent composition comprising sulphidosilanes of the Formula Y´R2Si - A - Sx - A - SiR2Y' wherein each R is selected from alkyl or aryl groups having 1 to 18 carbon atoms, each Y' is selected from hydroxyl and alkoxy, hydroxyalkoxy, or alkoxyalkoxy groups having 1 to 8 carbon atoms, each A independently represents the same or different divalent organic group having 1 to 18 carbon atoms and x has an average value in the range 2 to 5, by reacting an aqueous phase comprising a sulfide compound, which is a polysulfide of the formula M2Sx and/or a mixture of sulfur with a hydrosulfide of the formula MHS or a sulfide of the formula M2Sn, where M represents ammonium or an alkali metal, x is defined as above and n has an average value of 1 to 5, with an alkoxydialkylhaloalkylsilane of the formula (R’O)R2Si-A-Z, where R and A are defined as above, R' represents an alkyl, hydroxyalkyl, or alkoxyalkyl group having 1 to 8 carbon atoms and Z represents a halogen selected from chlorine, bromine and iodine, in the presence of a phase transfer catalyst under conditions such that some partial hydrolysis of alkoxysilane groups takes place to produce a coupling agent product containing a sulfidosilane.

Salt suitable for an acid generator and a chemically amplified resist composition containing the same

Abstract: The present invention provides a salt of the formula (I): wherein ring X represents monocyclic or bicyclic hydrocarbon group having 3 to 30 carbon atoms, and one or more hydrogen atom in the ring X is optionally substituted with alkyl group having 1 to 6 carbon atoms, alkenyl group having 2 to 6 carbon atoms, alkoxy group having 2 to 6 carbon atoms or perfluoroalkyl group having 1 to 4 carbon atoms; Q1 and Q2 each independently represent fluorine atom or perfluoroalkyl group having 1 to 6 carbon atoms; A+ represents organic counter ion; and n shows an integer of 1 to 12. The present invention also provides a chemically amplified resist composition comprising the salt of the formula (I).

Asymmetric Induction in Methyl Ketone Aldol Additions to α-Alkoxy and α,β-Bisalkoxy Aldehydes: A Model for Acyclic Stereocontrol

Abstract: A systematic study of methyl ketone aldol additions under nonchelating conditions with α-alkoxy and α,β-bisalkoxy aldehydes is described. Additions to aldehydes containing a single α-alkoxy stereocenter generally provide the product diastereomers in accord with the Cornforth/polar Felkin-Anh models for carbonyl addition. Vicinal asymmetric induction is sensitive to the aldehyde α-alkyl substituent, but is relatively insensitive to the nature of the alkoxy protecting group. Aldehyde π-facial selectivity in additions to substrates containing an additional β-alkoxy-substituted stereocenter exhibits a striking dependence on the relative configuration of the α- and β-stereocenters. Aldehydes with the α- and β-alkoxy substituents in an anti relationship in most cases exhibit good diastereoselectivity, while aldehydes with the α- and β-alkoxy substituents in a syn relationship unexpectedly give product mixtures. A stereochemical model based on Cornforth-like transition-state arrangements is proposed.

Salt for acid generator of chemically amplified type resist composition

Abstract: PROBLEM TO BE SOLVED: To provide a salt which forms an acid generator giving a chemically amplified type resist composition exhibiting higher resolution. SOLUTION: The salt is represented by formula (I) (wherein X is a 3-30C group including an alicyclic hydrocarbon and the carbon atoms present in X may be partially substituted with oxygen atoms and may form a carbonyl group; Y is a 3-30C cyclic hydrocarbon group and the carbons present in Y may be partially substituted with oxygen atoms and may contain one or more of a 1-6C alkyl group, a 1-6C alkoxy group, a 1-4C perfluoroalkyl group, a 1-6C hydroxyalkyl group, a hydroxy group and a cyano group as substituents; A + is an organic counter ion; Q 1 and Q 2 are each fluorine or a 1-6C perfluoroalkyl group). COPYRIGHT: (C)2008,JPO&INPIT

Regiospecific Synthesis of 4-Alkoxy and 4-Amino Substituted 2-Trifluoromethyl Pyrroles

Abstract: A simple and regiospecific synthesis of 4-alkoxy(amino)-2-trifluoromethyl pyrroles from 5-azido-4-alkoxy(amino)-1,1,1-trifluoro-pent-3-en-2-ones by an aza-Wittig cyclization of aminophosphoranes is described. The structures of the pyrroles and their synthetic intermediates were supported by NMR and HRMS analysis.

Red phosphorescent compound and organic electroluminescent device using the same

Abstract: Disclosed are a blue phosphorescent compound with a high color purity and a high efficiency, and an organic electroluminescent device using the same The blue phosphorescent compound is represented by the following Formula: wherein R1 to R5 are each independently hydrogen (H), fluorine (F), chlorine (Cl), bromine (Br), a cyano group, a C1 to C6 alkyl group, a C1 to C6 alkoxy group, a C6 to C20 substituted or unsubstituted aromatic group, a C5 to C20 substituted or unsubstituted heterocyclic group, a C1 to C6 amine group, a C6 to C20 aromatic-substituted amine group, or a C5 to C20 heterocycle-substituted amine group, X is selected from nitrogen (N), oxygen (O), phosphorous (P) and sulfur (S) atoms, at least one of A1, A2, A3 and A4 is nitrogen (N), and the remaining are selected from hydrogen (H)-substituted carbon, and alkyl or alkoxy-substituted carbon, L is a monodentate or bidentate ligand and n is 1 to 3

Polymer compound and polymer light-emitting device using same

Abstract: Disclosed is a polymer compound characterized by containing a repeating unit represented by the formula (1) below. The polymer compound is excellent in heat resistance, fluorescence intensity and the like, and is useful as a light-emitting material, a charge-transporting material and the like. (1) (In the formula, ring A and ring B independently represent an optionally substituted aromatic hydrocarbon ring and at least one of ring A and ring B is an aromatic hydrocarbon ring obtained by condensing a plurality of benzene rings; and Rw and Rx independently represent a hydrogen atom, an alkyl group, an alkoxy group or the like and Rw and Rx may combine together to form a ring.)

Electric double-layer capacitor

Abstract: An activated carbon comprising a carbonized and activated compound represented by the formula (1): (wherein, R represents a hydrocarbon group having 1 to 12 carbon atoms, said hydrocarbon group may be optionally substituted with hydroxyl group, alkyl group, alkoxy group, aryl group, aryloxy group, sulfonyl group, halogen atoms, nitro group, thioalkyl group, cyano group, carboxyl group, amino group or amide group, R′ represents hydrogen atom or methyl group, and n represents an integer of 4, 6, or 8).

Carbon−Oxygen Bond Cleavage with η9,η5-Bis(indenyl)zirconium Sandwich Complexes

Abstract: Treatment of the eta9,eta5-bis(indenyl)zirconium sandwich complex, (eta9-C9H5-1,3-(SiMe3)2)(eta5-C9H5-1,3-(SiMe3)2)Zr, with dialkyl ethers such as diethyl ether, CH3OR (R=Et, nBu, tBu), nBu2O, or iPr2O resulted in facile C-O bond scission furnishing an eta5,eta5-bis(indenyl)zirconium alkoxy hydride complex and free olefin. In cases where ethylene is formed, trapping by the zirconocene sandwich yields a rare example of a crystallographically characterized, base-free eta5,eta5-bis(indenyl)zirconium ethylene complex. Observation of normal, primary kinetic isotope effects in combination with rate studies and the stability of various model compounds support a mechanism involving rate-determining C-H activation to yield an eta5,eta5-bis(indenyl)zirconium alkyl hydride intermediate followed by rapid beta-alkoxide elimination. For isolable eta6,eta5-bis(indenyl)zirconium THF compounds, thermolysis at 85 degrees C also resulted in C-O bond cleavage to yield the corresponding zirconacycle. Both mechanistic and computational studies again support a pathway involving haptotropic rearrangement to eta5,eta5-bis(indenyl)zirconium intermediates that promote rate-determining C-H activation and ultimately C-O bond scission.

Nonaqueous electrolyte and nonaqueous electrolyte secondary battery using the same

Abstract: A nonaqueous electrolyte containing a silicon compound of formula (1) or (2) and a nonaqueous electrolyte secondary battery using the nonaqueous electrolyte and excellent in cycle characteristics and low temperature characteristics, wherein R 1 and R 2 each represent alkyl, cycloalkyl, alkoxy or halogen; R 3 represents alkenyl; and X represents halogen, wherein R 4 , R 5 , R 6 , and R 7 each represent alkyl, alkoxy, alkenyl, alkenyloxy, alkynyl, alkynyloxy, phenyl or phenoxy, each of which may have an ether bond in its chain; R 8 represents halogen, halogen-substituted aryl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl; a trifluoromethyl group, an acyloxy group having 5 to 8 carbon atoms, a sulfonate group having 1 to 8 carbon atoms, an isocyanyl group an isothianyl or a cyano group, R 9 represents halogen, a trifluoromethyl group,an acyloxy group having 5 to 8 carbon atoms, a sulfonate group having 1 to 8 carbon atoms, an isocyanyl group an isothianyl or a cyano group: halogen-substituted aryl; n represents 1 or 2; and Y represents a single bond, oxygen, alkylene, alkylenedioxy, alkenylene, alkenylenedioxy, alkynylene, alkynylenedioxy, arylene or arylenedioxy; provided that the number of groups having an unsaturated bond in R 4 , R 5 , R 6 , R 7 , R 8 , and R 9 is zero or one.