发明名称 |
Process for the preparation of condensation products of acetoacetic esters and aldehydes |
摘要 |
The known condensation reaction of lower alkanoylacetic acid lower alkyl esters with aldehydes catalyzed by amines proceeds safe and in high yields if the amineis an aliphatic tertiary amine. The products are precursors of aromatic amines.
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申请公布号 |
US4220799(A) |
申请公布日期 |
1980.09.02 |
申请号 |
US19770856737 |
申请日期 |
1977.12.01 |
申请人 |
HOECHST AG |
发明人 |
BERTHOLD, RUDIGER;HEISE, HARTMUT;MEES, BERNHARD |
分类号 |
C07C69/67;B01J31/00;C07B61/00;C07C45/00;C07C45/72;C07C45/75;C07C49/603;C07C67/00;C07C69/757;(IPC1-7):C07C69/66;C07C69/74 |
主分类号 |
C07C69/67 |
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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