3-奎宁环酮 、 氯化苄 在
乙腈 作用下,
以
乙腈 为溶剂,
反应 2.0h,
以gave 115.0 g (93 percent) of 1-benzyl-3-oxoquinuclidinium chloride in the form of white crystalline solid的产率得到1-benzyl-3-oxoquinuclidinium chloride
参考文献:
名称:
Process for the preparation of optically active 3-quinuclidinol
Process for the preparation of optically active 3-quinuclidinol
申请人:Lonza AG
公开号:US05744606A1
公开(公告)日:1998-04-28
Optically active 3-quinuclidinol is obtained by the asymmetric hydrogenation of 3-quinuclidinone, its Lewis acid adducts or its tertiary or quaternary salts, for example, 1-(diphenylmethyl)-3-oxoquinuclidinium bromide. Rhodium/chiral diphosphine complexes with a metallocene structure are preferably used as catalysts. Optically active 3-quinuclidinol is a synthetic building block for pharmaceutical active substances (M.sub.1 receptor agonists).