Process for the manufacture of monoacyl acetyl compounds of primary amines专利检索- 由其他偶氮化合物制备的偶氮染料专利检索查询-专利查询网

Process for the manufacture of monoacyl acetyl compounds of primary amines
申请号	US15893750	申请日	1950-04-28	公开(公告)号	US2700037A	公开(公告)日	1955-01-18
申请人	CIBA LTD;			发明人	MAX SCHMID; EDUARD MOSER;
摘要
权利要求	1. A PROCESS FOR THE MANUFACTURE OF MONOACYL ACETYL COMPOUNDS OF PRIMARY AMINES, WHICH COMPRISES REACTING AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 0 TO 30* C. IN AN AQUEOUS NON-ACID MEDIUM A CHLORIDE OF A CYCLIC CARBOXYLIC ACID WITH AN ACETOACETYL COMPOUND OF A PRIMARY CYCLIC AMINE WHICH CONTAINS IN ITS MOLECULE AT LEAST ONE WATER-SOLUBILIZING ACID GROUP, AND THEN HYDROLYZING THE SO-OBTAINED DIACYL ACETYL COMPOUND IN AN ALKALINE MEDIUM UNTIL H3C-CO- GROUPS ARE SPLIT OFF. 10. A PROCESS FOR THE MANUFACTURE OF A MONOACYL ACETYL COMPOUND OF A PRIMARY AMINE, WHICH COMPRISES REACTING AT A TEMPERATURE WITHIN THE RANGE FROM ABOUT 0. TO 30* C. IN AN AQUEOUS NON-ACID MEDIUM BENZOYL CHLORIDE WITH 4 - ACETACETYLAMINO - 4'' - HYDROXY - L:L'' - AZOBENZENE3'' -CARBOXYLIC ACID, AND THEN HYDROLYZING THE SO-OBTAINED DIACYL-ACETYL COMPOUND IN AN ALKALINE MEDIUM UNTIL THE H3C-CO- GROUP IS SPLIT OFF.
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