Internal rotation barriers in esters of N,N-dimethyldithiocarbamic acid

Conclusions The method of a complete analysis of the shape of the lines was used to determine the activation parameters of hindered rotation around the N-C bond in the molecules of N,N-dimethyldithiocarbamic acid esters. The value of the barrier in these compounds is lower than in the thioamides, and depends on the electronic and steric nature of the substituent on the sulfur atom.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 6, pp. 1388–1390, June, 1976.     

Thermal Addition of Diphenyl Disulfide to Ethynyltrimethylsilane in the Presence of Dimethyl Diselenide

Russian Journal of General Chemistry -     

Unexpected formation of 2-ethylthiophene by thermolysis of 1,1-dipropenylsulfide

Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, p. 561, April, 1988.     

Reaction of dithiomalonic acid dianilide with methyl propiolate

Dithiomalonic acid dianilide reacted with methyl propiolate in acetic acid in the presence of excess perchloric acid to give 4-anilino-2-methoxycarbonylmethyl-1,3-dithiine-6-phenyliminium perchlorate.     

2-(Trialkoxysilylalkylthio)ethyl vinyl sulfides

Conclusions Trialkoxysilylalkanethiols (CH₃O)₃Si(CH₂)_nSH (n=1–3) react with divinyl sulfide at 100–110° to give 2-(trialkoxysilylalkylthio)ethyl vinyl sulfides (CH₃O)₃Si(CH₂)_nS (CH₂)₂SCH=CH₂ in high yield. The reactivity of the trialkoxysilylalkanethiols decreases with increase in the number of CH₂ groups between the S and Si atoms. A second molecule of the organosilicon thiol acids adds with difficulty to divinyl sulfide to give the diadduct.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 197–199, January, 1977.     

Oxidation of 1-vinyl-2-thiabicyclo[3.2.0]-hept-3-ene

Conclusions Oxidation of 1-vinyl-2-thiabicyclo[3.2. 0]hept-3-ene by hydrogen peroxide leads to 1-vinyl-2-thiabicyclo-[3.2.0]hept-3-ene 2-oxide (cis- and trans-isomers) and 1-vinyl-2-thiabicyclo[3.2. 0]hept-3-ene 2,2-dioxide.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1883–1885, August, 1984.