Original syntheses of carbonyl compounds and gem-dihalocyclopropanes from β-hydroxyalkylselenides
作者:A. Krief、J.L. Laboureur、W. Dumont
DOI:10.1016/s0040-4039(01)81039-x
日期:1987.1
β-hydroxyalkylselenides possessing two alkyl substituents on the carbon bearing the selenenyl moiety react with dihalocarbenes generated from haloforms and thallous ethoxide or under phase transfer catalysis to produce ring enlarged ketones as the sole product in the first case, as the main product in the second. The reaction takes another course when the dihalocarbenes generated from haloforms and
在带有亚硒基部分的碳上具有两个烷基取代基的β-羟基烷基硒化物与卤代烃和thallous ethoxide生成的二卤卡宾反应,或在相转移催化下生成环扩大的酮,在第一种情况下作为唯一产物,在第二种情况下作为主要产物。该反应时从卤仿和将tBuOK或从trihalomethylphenylmercury产生的dihalocarbenes采用和导线另一过程间别名到dihalocyclopropanes。