| 发明名称 |
Process for the preparation of 4,4'-dihydroxy-3,3',5,5'-tetraalkyl-diphenylalkanes |
| 摘要 |
A process for the preparation of a 4,4'-dihydroxy-3,3',5,5'-tetraalkyl-diphenylalkane by reacting a 2,6-dialkyl phenol with a ketone in the presence of an acid organic ion exchanger wherein said acid ion exchanger is a macroporous resin with an average pore diameter of at least 300 A.
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| 申请公布号 |
US4319053(A) |
申请公布日期 |
1982.03.09 |
| 申请号 |
US19770840896 |
申请日期 |
1977.10.11 |
| 申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
HEUSER, JUERGEN;JEROMIN, GUENTHER;SCHWARZ, HANS-HELMUT;FRIEDHOFEN, GERHARD |
| 分类号 |
B01J31/00;C07B61/00;C07C27/00;C07C37/20;C07C39/16;C07C67/00;(IPC1-7):C07C39/16 |
主分类号 |
B01J31/00 |
| 代理机构 |
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代理人 |
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