发明名称 |
Process for preparing phenethanol ethers by the reduction of corresponding phenylglyoxal acetals |
摘要 |
Substituted phenethanol ethers are prepared by the catalytic reduction of corresponding substituted phenylglyoxal acetals. The catalytic reduction is carried out by reacting a substituted phenylglyoxal acetal with hydrogen in the presence of an acid catalyst and a metal catalyst. Certain substituted phenylglyoxal acetals, and more particularly, 4-hydroxyphenylglyoxal dialkyl acetals are prepared by reacting 4-hydroxyacetophenone with a primary or a secondary alkyl alcohol in the presence of a hydrogen ion (H+) source and a nitrosonium ion (NO+) source.
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申请公布号 |
US5124489(A) |
申请公布日期 |
1992.06.23 |
申请号 |
US19910755913 |
申请日期 |
1991.09.06 |
申请人 |
HOECHST CELANESE CORPORATION |
发明人 |
DURRWACHTER, JOHN R.;MEIER, MICHAEL;MOTT, GRAHAM N.;MUELLER, WERNER H. |
分类号 |
C07C227/24;C07C229/36;C07D233/78 |
主分类号 |
C07C227/24 |
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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