发明授权
- 专利标题: Process for the preparation of n-alkylated aromatic amines
- 专利标题(中): 制备N-烷基芳族氨基酸的方法
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申请号: US626343申请日: 1990-12-12
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公开(公告)号: US5166440A公开(公告)日: 1992-11-24
- 发明人: Otto Immel , Helmut Waldmann , Rudolf Braden
- 申请人: Otto Immel , Helmut Waldmann , Rudolf Braden
- 申请人地址: DEX Leverkusen
- 专利权人: Bayer Aktiengesellschaft
- 当前专利权人: Bayer Aktiengesellschaft
- 当前专利权人地址: DEX Leverkusen
- 优先权: DEX3942413 19891221; DEX4008257 19900315
- 主分类号: B01J23/20
- IPC分类号: B01J23/20 ; C07B61/00 ; C07C209/18 ; C07C209/60 ; C07C209/68 ; C07C211/48
摘要:
Aromatic amines, alkylated on the N-atom, can be prepared by catalytic alkylation of aromatic amines with alcohols or the corresponding ethers or by transalkylation with aromatic amines alkylated on the N-atom, whereby niobic acid or tantalic acid is used as the catalyst.
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