Alicyclic compound

About: Alicyclic compound is a research topic. Over the lifetime, 8243 publications have been published within this topic receiving 68476 citations.

Vogel's Textbook of Practical Organic Chemistry

Abstract: 1. Organic synthesis 2. Experimental techniques. 3. Spectroscopic methods. 4. Solvents and reagents. 5. Aliphatic compounds. 6. Aromatic compounds. 7. Selected alicyclic compounds. 8. Selected heterocyclic compounds. 9. Investigation and characterisation of organic compounds. 10. Physical constants of organic compounds.

Positive resist composition

Abstract: A positive resist composition comprising a hydroxypolyamide represented by the following general formula (I) and a photoactive component: (wherein R 1 and R 3 may be the same or different and are each a tetravalent aromatic group; R 2 is a bivalent aromatic group; n is an integer of 2 to 150; and Z is a monovalent organic group and at least 40% of Z is a group represented by the following structural formula (II): —X—R 4 —(COOH) m (II) (wherein X is a carbonyl group or a sulfonyl group; m is an integer of 0 to 3 with a proviso that m is not 0 when X is a carbonyl group; R 4 is an aliphatic group not including alkenyl group or alkynyl group, an alicyclic group or an aromatic group; and, when X is a carbonyl group and R 4 is an alicyclic group or an aromatic group, at least one of the carboxylic groups is at the ortho position)).

Organic phosphorus compounds

Abstract: 1,160,436. Substituted amino-dialkylene phosphonic acid derivatives. MONSANTO CO. 3 Aug., 1966, No. 34861/66. Addition to 1,023,785. Heading C2C. [Also in Division C5] Esters of the general formula where R contains from 4 to 30 carbon atoms, is substituted or unsubstituted, and is an alicyclic group, an aryl group, an alkaryl group or an aralkyl group, R 1 , R 2 , R 3 and R 4 are hydrogen, aliphatic hydrocarbyl, alicyclic, aryl, alkaryl, aralkyl or heterocyclic groups which are optionally substituted and contain from 4 to 30 carbon atoms, X is optionally substituted and is a C 1-30 aliphatic hydrocarbyl group, an aryl, alkaryl, aralkyl or alicyclic group or a cation, are prepared by reacting a primary amine, an aldehyde and a diester of phosphorous acid, or orthophosphorous acid, or by hydrolysis of an appropriate phosphonate ester with HCl or HBr, or by reacting an amine with a carbonyl compound to form an imine and reacting this with a dialkyl phosphite. The compounds exhibit deflocculating and surfactancy proper. ties.

The Empirical Treatment of Solvent-Solute Interactions: 15 Years of .pi.*

Abstract: The near-UV-visible spectra of 4-nitroanisole (OMe) and N,N-dimethyl-4-nitroaniline (NMe2) were obtained at 250 f 01 “ C in the gas phase and in a set of 229 solvents that includes non-hydrogen-bond donors such as hydrocarbons (aliphatic, alicyclic, ethylenic, and aromatic), perfluorinated and other halogenated hydrocarbons (aromatic and nonaromatic), nitriles, ketones, esters, lactones, anhydrides, amides, ureas, phosphates, HMPA, sulfates, sulfites, sulfoxides, sulfones, pyridines, and tertiary amines as well as weak hydrogen-bond donors such as nitrocompounds and primary and secondary amines The frequencies of the absorption maxima of these spectra were used to refine and critically examine the ?r* scale of solvent effects The dielectric constants and refractive indexes of the solvents (mostly from this work) were used in an Oshika-Bayliss-McRae (OBM) treatment of these frequencies that led to the following results: (i) The partitioning of dipolarity and polarizability contributions to ?r*; (ii) the quantitative assessment of more specific contributions to ?r* due to aromatic solvents This study also showed the limitations of the OBM treatment and the advantages of the empirical approach General conclusions regarding the physical meaning and the use of scales of solvent effects (excluding hydrogen bonding) were drawn

Thermally stable polyimides from solutions of monomeric reactants

Abstract: A method for preparing thermally stable resin-fiber-reinforced composites by using solutions of appropriate monomers is described. Solutions containing a dimethyl ester of an aryl tetracarboxylic acid, the monomethyl ester of nadic acid, and an aryl diamine were used to impregnate graphite fibers. Composites fabricated from these prepregs exhibited excellent thermo-oxidative stability and retention of mechanical properties at 315 C (600 F). These results compare favorably to those obtained from composites made from amide-acid prepolymers capped with reactive alicyclic rings. Monomeric solutions provide excellent shelf life and improved solubility compared to amide-acid prepolymer solutions.