| 发明名称 |
METHOD OF OBTAINING OF ALANINE DERIVATIVES |
| 摘要 |
<p>Stereospecific synthesis of <IMAGE> (R-configuration at C2) by reaction of <IMAGE> (S-configuration at C2) with <IMAGE> 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 |
BG27539(A3) |
申请公布日期 |
1979.11.12 |
| 申请号 |
BG19760034601 |
申请日期 |
1976.11.03 |
| 申请人 |
SHELL INTERNATIONAL RESEARCH MAATSCHAPPIJJB.V. |
发明人 |
SCOTT,RICHARD M.;ARMITAGE,GEOFFREY D. |
| 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):C07C101/08 |
主分类号 |
A01N37/02 |
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