发明名称 |
Preparation of 3,5-disubstituted-4-acetoxystyrene |
摘要 |
3-substituted-4-hydroxy- and 4-acetoxystyrene compounds, especially 3,5-di(methyl, bromo or chloro)-4-acetoxystyrene as well as a process for its preparation. 2,6-dimethylphenol is acylated with acetic anhydride and HF catalyzed to produce 3,5-dimethyl-4-hydroxy-acetophenone. After subsequent esterification with acetic anhydride and catalyzed hydrogenation to form 1-(3',5'-dimethyl-4'-acetoxyphenyl)ethanol, this intermediate is then dehydrated with an acid and a polymerization inhibitor to produce 3,5-dimethyl-4-acetoxystyrene.
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申请公布号 |
US4965400(A) |
申请公布日期 |
1990.10.23 |
申请号 |
US19880226260 |
申请日期 |
1988.08.02 |
申请人 |
VICARI, RICHARD;ASLAM, MOHAMMAD;RAY, WILSON B.;DAVENPORT, KENNETH G.;DAMMEL, RALPH;LINGNAU, JUERGEN;DOESSEL, KARL-FRIEDRICH |
发明人 |
VICARI, RICHARD;ASLAM, MOHAMMAD;RAY, WILSON B.;DAVENPORT, KENNETH G.;DAMMEL, RALPH;LINGNAU, JUERGEN;DOESSEL, KARL-FRIEDRICH |
分类号 |
C07C43/23;B01J23/44;B01J27/12;B01J27/125;C07B61/00;C07C27/00;C07C39/373;C07C41/00;C07C45/54;C07C45/63;C07C49/825;C07C67/00;C07C67/08;C07C67/297;C07C67/34;C07C67/347;C07C67/62;C07C69/157;C07C209/00;C07C213/00;C07C219/34;C08F12/00;C08F12/14;G03F7/038 |
主分类号 |
C07C43/23 |
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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