A novel synthesis of allenes by alkenylation of magnesium alkylidene carbenoids with lithium α-sulfonyl carbanions
作者:Tsuyoshi Satoh、Tatsuya Sakamoto、Masanori Watanabe
DOI:10.1016/s0040-4039(02)00103-x
日期:2002.3
Treatment of magnesium alkylidene carbenoids, which were generated from 1-chlorovinyl p-tolyl sulfoxides with a Grignard reagent by sulfoxide–magnesium exchange, with lithium α-sulfonyl carbanions gave allenes in moderate to good yields. This procedure offers a novel synthetic method for allenes with three-component coupling in relatively short steps.
用格氏试剂通过亚砜-镁交换,用α-磺酰基锂锂处理1-氯乙烯基对甲苯基亚砜中的1-亚甲基乙烯基对甲苯基亚砜生成的亚烷基镁类胡萝卜素,可得到中等至良好收率的异戊烯。该方法在较短的时间内为三组分偶联的丙二烯提供了一种新颖的合成方法。