发明名称 |
Process for the preparation of a bis-salicylidene-alkylene-diaminocobaltous ion complex |
摘要 |
Improved process for the preparation of salcomine useful as an oxidation catalyst for the oxidation of alkylated phenols to the corresponding alkylated p-benzoquinones by reacting salicylaldehyde with ethylenediamine in a mole ratio of about 2:1 and a cobalt salt in a liquid reaction medium wherein the reaction medium is a linear or cyclic carboxamide which is disubstituted on the nitrogen, in particular dimethylformamide, and the cobalt salt is cobalt carbonate or with the cobalt hyroxide carbonate, 2 CoCO3.3 Co(OH)2.H2O. Preparation of the salcomine in accordance with the invention offers significant advantages, both in the preparation of the salcomine itself and in the subsequent oxidation of the trimethylphenol to trimethyl-p-benzoquinone utilizing the salcomine.
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申请公布号 |
US4562277(A) |
申请公布日期 |
1985.12.31 |
申请号 |
US19840571806 |
申请日期 |
1984.01.18 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
LAAS, HARALD;TAVS, PETER;HANNEBAUM, HEINZ;STROEZEL, MANFRED |
分类号 |
C07C46/08;C07F15/06;(IPC1-7):C07F15/06 |
主分类号 |
C07C46/08 |
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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