发明名称 |
Method of preparing alkoxymethylene compounds |
摘要 |
An improvement in the alkoxylation of a compound having a reactive methylene group by contacting said compound with an orthoformic acid trialkyl ester in the presence of a catalyst, the improvement residing in employing at least 1.6 moles of orthoformic acid ester per mole of compound having a reactive methylene group and carrying out the process in the presence of a catalyst of the group of aliphatic carboxylic acids, anhydrides of aliphatic carboxylic acids, aromatic sulphonic acids, alkali metal alcoholates and alkanolamines.
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申请公布号 |
US4468353(A) |
申请公布日期 |
1984.08.28 |
申请号 |
US19820432051 |
申请日期 |
1982.09.30 |
申请人 |
DYNAMIT NOBEL AG |
发明人 |
ACKERMANN, OTTO;BRETZINGER, DIETER;SCHNEIDEWIND, HERBERT;STEPHAN, RUDOLF |
分类号 |
C07B61/00;B01J31/00;B01J31/02;C07C;C07C67/00;C07C253/00;C07C255/15;C07C255/23;(IPC1-7):C07C120/00;C07C121/30;C07C121/45;C07C121/41 |
主分类号 |
C07B61/00 |
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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