申请人:A.H. ROBINS COMPANY, INCORPORATED
公开号:EP0269258A2
公开(公告)日:1988-06-01
In a process for the preparation of a pyrrolidinol compound having the general formula I, a hydroxybutyronitrile compound having a general formula II undergoes reductive cyclisation, in an acid containing solution, with hydrogen gas in the presence of a Raney nickel catalyst.
R represents a hydrogen atom, a loweralkyl group, a loweralkenyl group, a cycloalkyl group, a cycloalkyl- loweralkyl group, a phenyl-loweralkyl group and a substituted phenyl-loweralkyl group; and R¹, R² and R³ independently represent a hydrogen atom, a loweralkyl group and a loweralkenyl group.
Novel hydroxybutyronitrile compounds and a process for the preparation of a hydroxybutyronitrile compound is also disclosed.
在制备通式 I 的吡咯烷醇化合物的工艺中,通式 II 的羟基丁腈化合物在含酸溶液中, 在雷尼镍催化剂存在下,用氢气进行还原环化反应。
R 代表氢原子、低级烷基、低级烯基、环烷基、环烷基-低级烷基、苯基-低级烷基和取代苯基-低级烷基;R¹、R² 和 R³ 独立地代表氢原子、低级烷基和低级烯基。
还公开了新型羟基丁腈化合物和制备羟基丁腈化合物的工艺。