| 发明名称 |
Synthesis of 3,6-dialkyl-5,6-dihydro-4-hydroxy-2H-pyran-2one |
| 摘要 |
<p>The present invention relates to a novel process for producing a delta -lactone of the formula: <CHEM> using an acyl halide of the formula: <CHEM> wherein R<1>, R<2> R<3> and X are described herein, as well as novel intermediates. In particular, the present invention relates to a process for enantioselectively producing the delta -lactone.</p> |
| 申请公布号 |
EP1127886(A1) |
申请公布日期 |
2001.08.29 |
| 申请号 |
EP20010101636 |
申请日期 |
2001.01.26 |
| 申请人 |
F. HOFFMANN-LA ROCHE AG |
发明人 |
HARRINGTON, PETER JOHN;HODGES, LEWIS M.;PUENTENER, KURT;SCALONE, MICHELANGELO |
| 分类号 |
C07D305/10;B01J31/22;C07B53/00;C07B61/00;C07C67/31;C07C67/317;C07C69/675;C07D309/30;C07D309/32;C07F7/18;(IPC1-7):C07D309/32 |
主分类号 |
C07D305/10 |
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