Synthesis and reactions of thiophene sulfides. Communication 40. An unusual reaction of 2,5-bis(methylthio)-3,4-bis(o-hydroxyphenyliminomethyl)thiophene

Conclusions In polar solvents (ethanol and chloroform), 2,5-bis(methylthio)-3,4-bis-(o-hydroxyphenyliminomethyl) thiophene undergoes intramolecular rearrangement to 2,5-bis(methylthio)-3-(2-benzoxazolyl)-4-(o-hydroxyphenylaminomethyl) thiophene.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2750–2753, December, 1985.     

β-Ketoaldehydes in the synthesis of 6-alkyl-3-cyano-2(1H)-pyridinethiones

An efficient synthesis of 6-alkyl-3-cyano-2(1H)-pyridinethiones by the reactions of the sodium salts of -ketoaldehydes with cyanothioacetamide was developed. Pyridinethiones undergo selectiveS-alkylation with haloacetonitriles and haloacetophenones followed by cyclization to the corresponding thieno[2,3-b]pyridines.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 4, pp. 727–731, April, 1995.This study was financially supported by the Russian Foundation for Basic Research (Project No. 94-03-08-823).     

Synthesis of 4,5,6-trisubstituted 3-cyanopyridine-2(1H)-thiones based on α-substituted β-diketones

5-Substituted 3-cyano-4,6-dimethylpyridine-2(lH)-thiones were synthesized by the re action of a-substituted -diketones with cyanothioacetamide in the presence of triethyl amine. The compounds synthesized were converted into thieno[2,3-blpyridines by treatment with organic halides and KOH.Translated fromlzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 2719–2721, November, 1996.     

Synthesis and transformations of sulfides of the thiophene series. 33. Structures of the products of formylation of 2-methoxy-5-methylthiothiophene

Isomeric alkoxy (alkylthio) formylthiophenes were synthesized from 4-iodo-2-methoxythiophene, and the structures of the products of Vilsmeier formylation of 2-methoxy-5-methylthiothiophene were confirmed.See [1] for Communication 32.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 182–188, February, 1981.     

Samarium Dithiocarbamates as Precursors for Deposition of SmS Films

Samarium dithiocarbamate complexes dtc₃Sm and their adducts dtc3SmL were prepared, studied, and used as precursors for deposition of SmS films. The influence of the composition and structure of the complexes on the properties of the SmS films was examined.     

Synthesis and transformations of sulfides of the thiophene series. 39. Synthesis and pharmacological properties of some 2,5-disubstituted 3-thienylalkylamines

A number of isomeric 3-thienylalkylamines containing methylthio and methoxy groups in the positions of the thiophene ring have been synthesized. It has been shown that they possess a weak activity of the stimulating and antidepressant type.For communication 38, see [1].Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1182–1185, September, 1984.