| 发明名称 |
Process for the preparation of ketone compounds |
| 摘要 |
PCT No. PCT/HU90/00026 Sec. 371 Date Dec. 11, 1991 Sec. 102(e) Date Dec. 11, 1991 PCT Filed Apr. 18, 1990 PCT Pub. No. WO91/16293 PCT Pub. Date Oct. 31, 1991.The invention relates to an improved, large scale process for the preparation of compounds of formula (I) <IMAGE> (I) wherein R is halogen atom or hydroxyl, R2 is hydrogen atom or hydroxyl, R3 and R4 are hydrogen or alkoxy having 1-6 carbon atoms.
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| 申请公布号 |
US5235109(A) |
申请公布日期 |
1993.08.10 |
| 申请号 |
US19910793422 |
申请日期 |
1991.12.11 |
| 申请人 |
CHINOIN GYOGYSZER- ES VEGYESZETI TERMEKEK GYARA RT |
发明人 |
LANYI, GYOERGY;KALLAY, TAMAS;LEDNICZKY, LASZLO;IMREI, LAJOS;SOMFAI, EVA;MONTAY, TIBOR;GEPESZ, ROBERT;DENES NEE LUSTIG, VALERIA;ARVAI, LASZLO |
| 分类号 |
C07C45/46;C07C;C07C45/45;C07C45/68;C07C49/825;C07C49/83;C07C49/84 |
主分类号 |
C07C45/46 |
| 代理机构 |
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