发明名称 |
METHOD FOR REMOVING BENZYL GROUP |
摘要 |
PURPOSE:To safely perform the reaction in a conventional open system without employing any specific reaction device by using hydrazine or the hydrate thereof as a hydrogen source when an amine having a benzyl group to a benzyl group- removing reaction in the presence of a palladium catalyst. CONSTITUTION:An amine having a benzyl group such as 1'-benzyl-4'- carbamoyl-1,4-bipipelidine is profitably subjected to a benzyl group-removing reaction with hydrazine or the hydrate thereof as a hydrogen source in the presence of a palladium catalyst. The method has excellent safety compared with the ordinary pressure hydrogenation debenzylation reaction, permits to perform the reaction in the conventional open container without a specific closed reactor and provides the objective compound in a good yield in a short time because of capability of being heated. |
申请公布号 |
JPH03188030(A) |
申请公布日期 |
1991.08.16 |
申请号 |
JP19890328744 |
申请日期 |
1989.12.18 |
申请人 |
YOSHITOMI PHARMACEUT IND LTD |
发明人 |
TASHIRO CHIAKI |
分类号 |
C07D295/02;B01J23/44;C07B43/04;C07B61/00;C07D207/12;C07D211/10;C07D211/20;C07D211/44;C07D211/58;C07D211/62;C07D211/70;C07D265/30;C07D295/04;C07D295/14;C07D295/20;C07D401/04;C07D471/10 |
主分类号 |
C07D295/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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