申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:EP0034437A2
公开(公告)日:1981-08-26
A process for the preparation of 2,2'-azobis (2,4-dimethylpentanenitrile) with improved filtering and drying characteristics is described comprising reacting 2-amino-2,4-dimethylpentanenitrile with a metal hypochlorite in the presence of water, a mixture of hexadecyl- trimethylammoniumchloride with dioctyldimethylammonium chloride (or other mixture of tetra-alkylammonium surfactants of specified formula) and ionic bromide wherein the equivalent ratio of ionic bromide to surface active compound is 0.4:1 - 12:1 and the reaction temperature is about -10°C to about 30°C.
描述了一种制备具有更好过滤和干燥特性的 2,2'-偶氮双(2,4-二甲基戊腈)的工艺,包括在有水、十六烷基三甲基氯化铵与二辛基二甲基氯化铵的混合物(或其他指定式的四烷基铵表面活性剂混合物)和离子溴存在的情况下,使 2-氨基-2,4-二甲基戊腈与金属次氯酸盐反应,其中离子溴与表面活性化合物的当量比为 0.4:1 - 12:1,反应温度约为 -10°C 至约 30°C。