Process for preparing stable organic hydroxysulfide compositions
申请人:Phillips Petroleum Company
公开号:US04939302A1
公开(公告)日:1990-07-03
An improved process is provided for reacting starting materials in the presence of an acid catalyst in a reaction zone to produce an acid sensitive product. The starting materials are circulated in the reaction zone through a fixed bed of solid acid-type ion exchange resin to thereby catalyze the reaction, and the resulting reaction product is withdrawn from the reaction zone. Starting materials comprised a mercaptan and an aldehyde or ketone are reacted in accordance with the process to produce high yields of aliphatic hydroxyalkyl or hydroxyaryl sulfide.
The vanadium pentoxide-catalysed oxidation of thio-compounds with hydrogen peroxide
作者:F. E. Hardy、P. R. H. Speakman、P. Robson
DOI:10.1039/j39690002334
日期:——
Sulphides have been oxidised with an anhydrous solution of hydrogenperoxide in tertiary butyl alcohol containing a catalytic amount of vanadium pentoxide to give sulphones and sulphoxides. This method was very useful for the partial oxidation of labiles sulphides (e.g.α-chloro-sulphides, and α-acetoxy-sulphide, and thiiran) to sulphoxides of high purity. A reported preparation of 2-hydroxymethylthiiran