Facile C–S Bond Cleavage of Aryl Sulfoxides Promoted by Brønsted Acid
作者:Nuno Maulide、Bogdan R. Brutiu、Immo Klose
DOI:10.1055/s-0040-1707109
日期:——
A method for the Bronsted acid promoted desulfination of aryl sulfoxides is presented. In the presence of a thiol, electron-rich sulfoxides undergo C–S bond cleavage to give the corresponding protodesulfinated arenes and disulfides.
Synthesis of 2,3-disubstituted thiophens via metalated acetylenes and allenes
作者:R.L.P. De Jong、L. Brandsma
DOI:10.1016/s0022-328x(00)87040-0
日期:1982.11
2,3-Disubstituted thiophen derivatives have been obtained in reasonable yields by treating 2-alkyne- and allene derivatives with butyllithium and potassium t-butoxide in tetrahydrofuran, adding carbon disulfide to the organometallic intermediate and then successively adding t-butyl alcohol, hexamethyl-phosphoric triamide and methyl iodide.