decomposition of the methanesulfonyl radical into the methyl radical and the subsequent transfer of an iodine atom or phenyl telluride group was used to develop a tin-freeradical acylation reaction (see scheme; V-40=1,1'-azobis(cyclohexane-1-carbonitrile). The key was finding reactionconditionsunder which the I or PhTe transfer is faster than the direct addition of the alkyl radical to the methanesulfonyl oxime
The use of aminoiminomethanesulfinic acid (thiourea dioxide) under phase transfer conditions for generating organochalcogenate anions. Synthesis of sulfides, selenides and tellurides
quenched by alkyl and activated aryl halides to give the corresponding sulfides and selenides in high yield (77–97%). The aryltellurolates react with alkyl halides giving the aryl alkyl tellurides in 81–96% yield. The procedure could not be successfully used for the synthesis of dialkylselenides and dialkyl tellurides; low yields and mixture of products were formed.
Novel oxidation of alkyl phenyl tellurides and telluroxides with meta-chloroperbenzoic acid: replacement of tellurium moiety by methoxy group accompanied by ring-contraction and phenyl migration
作者:Sakae Uemura、Shin-ichi Fukuzawa
DOI:10.1016/s0040-4039(00)88338-0
日期:1983.1
Oxidation of alkyl phenyl tellurides and telluroxides with meta-chloroperbenzoic acid in methanol at room temperature was accompanied by phenyl migration and ring-contraction respectively when applied to the compounds having phenyl group next to the tellurium moiety and to the methoxytelluration products of cyclic olefins.