液相法合成二溴新戊二醇  

Liquid-Phase Synthesis of Dibromoneopentyl Glycol

作　　者：马丽锋[1] 李丽娟[1] 陈慧[1] 郝六平[1] 马吉海[2] 

机构地区：[1]河北化工医药职业技术学院制药工程系,河北石家庄050026 [2]河北科技大学理学院,河北石家庄050018

出　　处：《广东化工》2010年第5期148-149,共2页Guangdong Chemical Industry

摘　　要：文章采用两种液相方法合成了二溴新戊二醇,方法一以40%氢溴酸和季戊四醇为原料,方法二以溴素、红磷和季戊四醇为原料。同时,文章还考察氢溴酸的浓度、浓硫酸、催化剂醋酸和反应时间等因素对收率的影响,指出氢溴酸的浓度和催化剂醋酸是影响其收率的两个关键影响因素。产物二溴新戊二醇的结构经熔点、IR和1HNMR确证。Dibromoneopentyl glycol （DBNPG） was prepared in liquid-phase by two methods in the paper. It was synthesised by 40% hydrobromic acid and pentaerythritol in the first method. In the second method, it was synthesised by bromine, red phosphorus and pentaerythrito. Besides, the factors of hydrobromic acid, concentrated hydrochloric acid, catalyst acetic acid and reaction time on the yield of DBNPG were also studieds. Concentration of hydrobromic acid and catalyst acetic acid were two key factors on the yield of DBNPG. The structure of dibromoneopentyl glycol was characterized by melting point, IR and 1HNMR.

关 键 词：季戊四醇 氢溴酸 液相 二溴新戊二醇 合成 

分 类 号：TQ314.248[化学工程—高聚物工业]