Thiols added easily to acetylenic compounds in the presence of Et3B to give alkenyl sulfides in good yields. The reaction of acetylenes with 3-methyl-2-buten-1-thio1 gave dihydro-thiophene derivatives in one pot.
Treatment of alkyne with alkanethiol in the presence of a catalytic amount of cesium carbonate and a radical inhibitor in DMSO provides the corresponding adduct, (Z)-1-alkenyl alkyl sulfide, in good yield with high selectivity.
Nucleophilic addition of thiols to acetylenes in liquid ammonia
作者:A. N. Volkov、K. A. Volkova、E. P. Levanova、B. A. Trofimov
DOI:10.1007/bf01167791
日期:1983.1
New methods for the preparation of thiovinyl ethers and unsym-ketones