Sulfoxide derivative and process for its preparation
申请人:Sagami Chemical Research Center
公开号:US04029712A1
公开(公告)日:1977-06-14
A novel sulfoxide derivative of the general formula ##STR1## wherein R.sup.1 and R.sup.3 are the same or different, and each represents and alkyl group having 1 to 4 carbon atoms, a phenyl group or a halo- or methyl-substituted phenyl group, R.sup.2 is a hydrogen atom, a lower alkyl group, benzyl group, or a p-methoxy- or p-bromo-benzyl group, R.sup.1 and R.sup.2, together, may form an alkylene group containing 3 carbon atoms, and X is an oxygen or sulfur atom, and to a process for its preparation.
Treatment of methyl (methylthio)methyl sulfoxide (1) with sodium hydride gave bis(methylthio)(methylsulfinyl)methane (3) which might be formed by abnormal attack of the carbanion (2) of 1 on the sulfide linkage of 1. The additon of butyl iodide to this system completely suppressed the formation of 3, showing that 2 reacts faster with butyl iodide than with 1. The mechanism to account for these phenomena