Synthesis of cyclic 1,4-disulfides and alkylthiophenes by catalytic thiacyclization of acetylenes with sulfur

Autor: Dzhemilev, U. M., Baibulatova, N. Z., Tkachenko, T. K., Kunakova, R. V., Khalilov, L. M., Berg, A. A.
Zdroj: Russian Chemical Bulletin; March 1989, Vol. 38 Issue: 3 p581-586, 6p
Abstrakt: 1.The thiacyclization of mono- and disubstituted acetylenes with sulfur, leading to the production of dialkyl-1,4-dithiacyclohexa-2,5-dienes and thiophenes with high yield and catalyzed by the Co(acac)2-AlEt3 system in the presence of various ligands, is characterized.2.The path of thiacyclization depends on the structure of the starting acetylene and the nature of the catalyst.
Databáze: Supplemental Index