Unusual bromination of tetrahydro-(–)-α-santonins and new santonin isomers: X-ray crystal and molecular structure of 2β,14-dibromo-4α,5β,6β,11βH-tetrahydrosantonin
作者:Seiichi Inayama、Nobuko Shimizu、Tetuichi Shibata、Hitoshi Hori、Yoichi Iitaka
DOI:10.1039/c39800000495
日期:——
A novel bromination–dehydrobromination reaction of tetrahydro-(–)-α-santonins is reported which has led, via the 2α,14- and 2β, 14-dibromo ketones (2a,b), to two new dienone isomers of (–)-α-santonin whose structures were established by X-ray diffraction and c.d. studies of (2b).
的一种新颖的溴化-脱溴化氢反应四氢- ( - ) - α -santonins报道这导致,经由2个α,14-和2 β,14-二溴酮类(图2a,b),对两个新的二烯酮的异构体( –)- α-降钙素,其结构由(2b)的X射线衍射和cd研究确定。