作者:Tore Bonge-Hansen、Marianne Bolsønes、Hanne Bonge-Hansen
DOI:10.1055/s-0033-1340170
日期:——
series of allylic diazoacetates were prepared from the corresponding allylic alcohols and bromoacetyl bromide. When the allylic diazoacetates were treated with 1,8-diazabicyclo[5.4.0]undec-7-ene and N-bromosuccinimide, a rapid full conversion to the corresponding allylic bromodiazoacetates occurred. Exposure of the allylic bromodiazoacetates to rhodium(II) catalysts induced an intramolecular cyclopropanation
由相应的烯丙醇和溴乙酰溴制备了一系列烯丙重氮乙酸酯。当烯丙基重氮乙酸酯用 1,8-二氮杂双环 [5.4.0] undec-7-ene 和 N-溴代琥珀酰亚胺处理时,迅速完全转化为相应的烯丙基溴重氮乙酸酯。烯丙基溴重氮乙酸盐暴露于铑 (II) 催化剂会诱导分子内环丙烷化,并产生环丙基溴内酯的产率从低到高取决于取代模式。