Metal hydride reduction of some σ- and π-allyl and benzyl derivatives of mercury and palladium
作者:Maxwell L. Bullpitt、William Kitching
DOI:10.1016/s0022-328x(00)90472-8
日期:1972.12
Br, OCOCH3, by sodium borohydride and trimethyltin hydride has been investigated and under all conditions examined, 1-butene is the sole organic product. Crotylmercuric hydride seems likely to form and then to undergo either intramolecular transfer of hydrogen from mercury to carbon in an SNi′ manner, or SN2′ displacement of mercury by some hydride species leading to 1-butene, or reactions producing
已经研究了硼氢化钠和氢化三甲基锡对2-丁烯基汞(巴豆基汞)体系RHgX的还原,其中X = Cl,Br,OCOCH 3,在所有考察的条件下,1-丁烯是唯一的有机产物。似乎会形成巴豆基汞氢化物,然后以S N i '的方式将氢从汞分子内转移到碳中,或者通过某些氢化物物种导致1-丁烯置换S N 2'汞,或产生巴豆基-羟基的反应。汞柱1或巴豆汞-其通过水或甲醇裂解以再次得到1-丁烯。还原时的π-巴豆基氯化钯只产生反式-2-丁烯,但是在三苯基膦浓度增加的情况下,这会促进烯丙基钯氯化物系统的πσ平衡,因此会形成大量的1-丁烯。