| 发明名称 |
FOERFARANDE FOER FRAMSTAELLNING AV ETT ENANTIOMERPAR AV CYANBENSYL-ISOPROPYLFENYLACETATDERIVAT. |
| 摘要 |
A pesticidal phenylacetate Y enantiomer pair is prepared by precipitating crystals of novel phenylacetate X enantiomer pair in the presence of crystals of phenylacetate X from a solution of racemic phenylacetate and recovering the filtrate rich in the Y enantiomer pair. The phenylacetate X crystals can be redissolved, epimerized and the epimerizaion product recycled to improve the yield of phenylacetate Y enantiomer pair. |
| 申请公布号 |
FI76549(B) |
申请公布日期 |
1988.07.29 |
| 申请号 |
FI19820000879 |
申请日期 |
1982.03.15 |
| 申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
PETTY, WALTER LEONARE |
| 分类号 |
C07C319/20;A01N;A01N37/08;A01N37/10;A01N37/34;A01N37/38;C07B57/00;C07C;C07C5/00;C07C57/00;C07C59/00;C07C67/00;C07C69/157;C07C69/614;C07C253/00;C07C253/34;C07C255/38;C07C313/00;C07C321/30;C07C323/62;(IPC1-7):C07C121/75;C07C121/66 |
主分类号 |
C07C319/20 |
| 代理机构 |
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