| 摘要 |
<p>1357601 5,6 - Dichloro - 3 - imino - isoindolinone SANDOZ Ltd 19 Aug 1971 [15 Sept 1970 (2) 16 Sept 1970] 39058/71 Heading C2C [Also in Division C4] In Example 1, 5,6-dichloro-3-imino-iso-indolinone is prepared by reacting 4,5-dichlorophthalic acid, urea and ammonium molybdate in o-dichlorobenzene at 140-150‹ C. with stirring. The product precipitates on cooling to 100‹ C. and is filtered, washed with methanol and then water and dried at 60‹ C. in vacuo.</p> |
