| 发明名称 |
PRODUCTION OF HERBICIDALLY-ACTIVE COMPOUNDS |
| 摘要 |
<p>Stereospecific synthesis of (R-configuration at C2) by reaction of (S-configuration at C2) with at elevated temperature in the presence of a base, e.g., R-(-)-(2-(N-benzoyl-3-chloro-4-fluoroanilino)propionic acid isopropylester)from S-(-)-isopropyl lactate mesylate and 3-chloro-4-fluoroaniline followed by benzoylation. The compounds are very active herbicides against broad-leafed weeds (R = H) or wild oats (R = (thio)benzoyl).</p> |
| 申请公布号 |
CA1110268(A) |
申请公布日期 |
1981.10.06 |
| 申请号 |
CA19760263684 |
申请日期 |
1976.10.19 |
| 申请人 |
SHELL CANADA LIMITED |
发明人 |
SCOTT, RICHARD M.;ARMITAGE, GEOFFREY D.;HARTHOORN, PAULUS A. |
| 分类号 |
A01N37/02;A01N;A01N37/22;A01N37/42;A01N37/44;A01N37/46;C07C;C07C67/00;C07C227/00;C07C227/06;C07C227/08;C07C227/10;C07C227/32;C07C229/18;C07C229/36;C07C231/00;C07C231/02;C07C233/15;C07C233/51;C07C233/81;C07C233/83;C07C239/22;C07C251/66;C07C325/00;C07C327/48;(IPC1-7):07C101/447;01N37/44 |
主分类号 |
A01N37/02 |
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