REGIOCHEMICAL CONTROL IN THE 1,2-CARBONYL TRANSPOSITION OF α,α′-DIMETHYLENE SYSTEMS THROUGH REGIOSELECTIVE SULFENYLATION OF TOSYLHYDRAZONE DIANIONS
作者:Tetsuya Mimura、Takeshi Nakai
DOI:10.1246/cl.1980.931
日期:1980.8.5
The regiochemical outcomes are described in the 1,2-carbonyl shift of α,α′-dimethylene systems which relies upon the regioselective sulfenylation of tosylhydrazone dianions leading to the enol thioethers of transposed ketones. Notably, a high regiospecificity was obtained with β-methyl- and β,β-dimethylcyclohexanone without any attempts to separate the stereoisomers of the hydrazones.
区域化学结果在 α,α'-二亚甲基系统的 1,2-羰基位移中进行了描述,该系统依赖于甲苯磺酰腙二价阴离子的区域选择性磺基化,导致转位酮的烯醇硫醚。值得注意的是,β-甲基-和β,β-二甲基环己酮获得了高区域特异性,而无需尝试分离腙的立体异构体。