发明名称 |
VERFAHREN ZUR HERSTELLUNG VON KETALEN |
摘要 |
The invention relates to a ketalisation method, in particular for sterically hindered ketones, in which a ketone of the formula R<1>COCH3 in which R<1> is optionally unsaturated alkyl, is reacted with catalytic amounts of alcohol R<2>OH in which R<2> is alkyl or haloalkyl, and at least equimolar amounts of orthoformate HC(OR<2>)3 under acidic conditions, with removal of the resulting formate HCOOR<2>, to give ketals of the formula R<1>C(CH3)(OR<2>)2. |
申请公布号 |
DE3925207(A1) |
申请公布日期 |
1991.01.31 |
申请号 |
DE19893925207 |
申请日期 |
1989.07.29 |
申请人 |
HOECHST AG, 6230 FRANKFURT, DE |
发明人 |
LACHHEIN, STEPHEN, DR., 6238 HOFHEIM, DE |
分类号 |
B01J27/10;B01J27/24;B01J31/02;B01J31/04;B01J31/08;C07B61/00;C07C41/48;C07C41/56;C07C43/303 |
主分类号 |
B01J27/10 |
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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