| 发明名称 |
PROCESS FOR THE PREPARATION OF OXETANONES |
| 摘要 |
The invention is concerned with a novel process for the manufacture of oxetanones of the formula (see formula I) wherein R1, R2 and X have the significance given in the description, via corresponding .beta.-keto- and .beta.-hydroxy-.delta.-lactones,
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| 申请公布号 |
CA2035972(C) |
申请公布日期 |
2006.07.11 |
| 申请号 |
CA19912035972 |
申请日期 |
1991.02.07 |
| 申请人 |
F. HOFFMANN-LA ROCHE AG |
发明人 |
KARPF, MARTIN;ZUTTER, ULRICH |
| 分类号 |
C07D305/12;C07C59/66;C07D;C07D309/00;C07D309/30;C07D309/32;C07D309/38;C07D405/12 |
主分类号 |
C07D305/12 |
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