Enantiopure bicyclic piperidinones: stereocontrolled conjugate additions leading to substituted piperidinones
作者:Andrew G. Brewster、Simon Broady、Mark Hughes、Mark G. Moloney、Gordon Woods
DOI:10.1039/b404325a
日期:——
The conjugate additions of Reformatsky reagents, organocuprate reagents, and hydroxylamines to a [4.3.0]-bicyclic enelactam derived from 6-oxopipecolic acid have been investigated, and found to be efficient, proceeding with excellent exo-stereocontrol, with the exception of N-benzyl-O-benzylhydroxylamine, which gives predominantly the product of endo-addition. These adducts can be readily converted
已经研究了将Reformatsky试剂,有机铜试剂和羟胺共轭添加到衍生自6-氧代哌酸的[4.3.0]-双环烯内酰胺中的方法,发现该方法有效,除N外,还可进行出色的外-立体控制。 -苄基-O-苄基羟胺,主要给出内加产物。这些加合物可以容易地转化为取代的哌啶酮。