N芳基丙烯酰胺在Pd催化下的分子内不对称碳环合钯,然后使用乙硼酸水作为氢化物源还原C(sp 3)-Pd中间体,从而以高收率和对映选择性提供了对映体富集的3,3-二取代的吲哚。当重水与双(邻苯二酚)二硼(Cat 2 B 2)一起用作氘供体时,氘以高合成效率掺入产品中。配体决定了反应的对映选择性和反应路径,从而提供了氢芳基化(还原性Heck)或碳硼化产物。
Reduction of piperidine-dion-derivatives and intermediates
申请人:NOVO NORDISK A/S
公开号:EP0374675A2
公开(公告)日:1990-06-27
The invention relates to a novel chemical process for preparing 4-phenylpiperidines having calcium overload blocking activity and antidepressant activity, and to novel intermediates used in that process.