Showing papers in "Journal of Sulfur Chemistry in 2014"

TL;DR: In this article, a review of the chemistry, structure and potential applications of 1-(acyl/aroyl)-3-(mono-substituted) and (1.3) thiourea molecules with general formula R1C(O)n(1)HC(S)N(3)R2R3.

TL;DR: A survey of recent advances and contributions to the methods of synthesis, chemical properties and application of β-keto sulfones with the main focus on their increasingly growing demand as starting substrates and intermediates incorporated in the syntheses of various classes of organic compounds can be found in this paper.

TL;DR: In this paper, Dithiocarbamate complexes of Zn, Cd, and Hg were synthesized and characterized by elemental analysis, thermogravimetric analysis, UV-Vis, FTIR, 1H- and 13C-NMR spectroscopy.

TL;DR: In this article, the structures of synthesized polysulfides were confirmed via the elemental analysis, attenuated total reflectance Fourier transform infrared spectroscopy and X-ray diffraction techniques.

TL;DR: In this article, the performance of sensor response toward CO was measured using difference response in spectral features of UV-VIS spectrophotometry in thin-film studies with and without the presence of CO.

TL;DR: In this article, the activity of heterogeneous catalysts of transition metal oxides and their mixtures deposited on the polymeric matrix in the oxidation of sodium sulfide was investigated.

TL;DR: In this paper, an efficient synthesis of N-(5-alkyl-1,3-oxathiolan-2-ylidene)arylamines via a one-pot reaction between arylisothiocyanates and substituted oxiranes in the presence of catalytic amount of pyridine-2 carbaldehyde oxime is described.

TL;DR: ZrP2O7 nanoparticles as an efficient catalyst have been used for the preparation of benzopyrano[2,3-b]pyridines from the four-component condensation reaction of salicylalde-hydes, thiols, and 2 equiv.

TL;DR: A series of novel pyridazine derivatives incorporated with triazole, thiazolidine, imidazolidine and oxazine was synthesized by the reaction of [6-(4-phenoxyphenyl)pyridazin-3-yloxy]acetyl isothiocyanate with variety of nucleophilic reagents as discussed by the authors.

TL;DR: In this paper, an efficient synthesis of 5-arylidene-2,4-thiazolidinediones and 5-benzylidene rhodanines by the Knoevenagel condensation of 2,4ththiaolidinedione with aromatic aldehydes was studied, which proceeded smoothly in the presence of tetrabutylammonium hydroxide/H 2O-EtOH to afford the corresponding products in high yields at 50°C.

TL;DR: In this article, the authors show that α-methylene ketones undergo room temperature Gewald reactions with elemental sulfur and ethyl cyanoacetate (or malononitrile) to yield 2-aminothiophene derivatives efficiently within short time periods.

TL;DR: In this paper, an improved Knoevenagel condensation of various aromatic aldehydes with thiazolidine-2,4-dithione and with 4-thioxothiazolidin-4-one was achieved at room temperature in polyethylene glycol-400 without catalyst to afford (Z)-5-arylmethylene-4 thioxothiaolidine derivatives 3a-3o.

TL;DR: In this article, the synthesis of novel fluorinated spiro[oxindole-thiazolidinone] fused with some sulfur and phosphorus heterocycles starting from 5-fluoro-3′-(4-fluorophenyl)-4′H-spiro[indole]-3,2′-thiaolidine]-2,4′(1H)-dione (1) via its reaction with trifluoroacetamide, 2-chloro-6fluorobenzaldehyde and hydrazine hydrate followed by treatment with some suitable sulfur

TL;DR: A series of benzothiazole heptamethine cyanine dyes have been synthesized and their photophysical properties evaluated and some potentially interesting candidates with improved fluorescence quantum yields when compared with ICG and IR-820 are highlighted.

TL;DR: In this paper, the synthesis of symmetric dialkyl and cyclic trithiocarbonates from alkyl halides and carbon disulfide in the presence of imidazole and water in DMSO under mild reaction conditions is described.

TL;DR: In this paper, a one-pot process for the synthesis of various sulfonyl azides (RSO2N3) by treating sulfonic acids with triphenylphosphine/trichloroisocyanuric acid/sodium azide at room temperature is described.

TL;DR: Silica bromide (SB) as heterogeneous reagent and promoter is prepared from reaction of silica gel with PBr3 as a non-hydroscopic, filterable, cheap, and stable yellowish powder that can be stored for months.

TL;DR: In this article, the authors provided an efficient process for synthesis of secondary and tertiary α-ketothioamides via the Willgerodt-Kindler reaction of readily available arylglyoxals with amines using Na2S as an effective catalyst.

TL;DR: Indium chloride has been used as a versatile Lewis acid catalyst for the synthesis of 3-sulfenylindoles in good yields by the independent reaction of indoles and N-alkylindores with N-(phenylthio)phthalimide in dimethyl formamide (DMF) at 100°C for about 5-6h as discussed by the authors.

TL;DR: In this article, a green and regioselective thiocyanation of aromatic and heteroaromatic compounds has been achieved via a simple protocol using cross-linked poly (4-vinylpyridine)-supported thIocyanate ion, [P4-VP]SCN, as a versatile polymeric reagent and potassium persulfate as a strong oxidizing agent, under heterogeneous conditions.

TL;DR: In this paper, the stabilization energy of (CH3)2S and (CH 3)2O was investigated using symmetry adapted perturbation theory analysis, natural bond orbital analysis in addition to molecular orbital methods.

TL;DR: In this article, the ammonium metavanadate/thiocyanate system was used as an efficient reagent for regioselective THIOCyanation of aromatic and hetero aromatic compounds under conventional and nonconventional conditions such as ultrasonically assisted and microwave-assisted reactions.

TL;DR: A series of novel ketene dithioacetals has been synthesized by condensation of active methylene compounds with carbon disulfide in the presence of dialkyl acetylenedicarboxylates.

TL;DR: In this paper, 2,3-Dichloro-1-propene reacts with alkane dithiolates in hydrazine hydrate-KOH medium to produce derivatives of dithiin, dithiepin, chloropropenyl, and allenyl sulfides depending on conditions and dithio-sulfide structure.

TL;DR: In this article, arylidenehydrazono-4-aryl-2,3-dihydrothiazole-5-carbonitriles with diethyl acetylenedicarboxylate (DEAD) in acetic acid with prolonged reflux was synthesized.

TL;DR: In this paper, 2-Iminothiazolidin-4-one derivatives were synthesized regioselectively in good to high yields by condensation of N,N-disubstituted thioureas and ethyl chloroacetate in the presence of basic ionic liquid [bmim]OH as a catalyst under conventional and ultrasonic irradiation conditions.

TL;DR: An efficient method for preparation of hitherto unknown E,E-bis(chloromethylidene) derivatives of -organylthiomorpholine and -selenomorpholines by the reaction of E, E-bis sulfide and selenide with primary amines in benzene or THF as well as with ethylammonium bromide in ethanol in the presence of Na2CO3 has been described as discussed by the authors.

TL;DR: In this article, 2-Arylbenzothiazoles were synthesized via condensation of 2-aminothiophenol and different aldehydes catalyzed by nano silica-supported boron trifluoride (nano BF3/SiO2) as an efficient and reusable catalyst in high yields and short reaction times.

TL;DR: An efficient and mild Sallylation of thiols with cyclic Baylis-Hillman acetates with no need of a transition-metal-catalyst or an expensive additive is described in this article.

TL;DR: In this paper, a comprehensive account of the synthesis of various benzothiazole systems and their potential to develop better chemotherapeutic agents is provided. But the authors focus mainly on the reactions of o-aminothiophenol and its derivatives.