2’-羟基联苯基-2-次膦酸的合成  

SYNTHESIS OF 2'-HYDROXYBIPHENYL-2-YLPHOSPHINIC ACID

作　　者：姜文良[1] 司春燕[1] 曾崇余[1] 

机构地区：[1]南京工业大学化学化工学院,江苏南京210009

出　　处：《精细石油化工》2006年第5期31-33,共3页Speciality Petrochemicals

摘　　要：以2-羟基联苯(OPP)和三氯化磷为原料,采用两步法合成了新型阻燃剂中间体2’-羟基联苯基-2-次膦酸(HBP)。通过正交实验确定的适宜工艺条件为:m(催化剂):m(OPP)=0．006:1,n(PCl3):n(OPP)= 1．4:1;PCl2先在80℃滴加70％,剩余部分在180℃滴加,然后升温到220℃并维持反应2 h。在上述条件下,OPP的转化率达99％以上,HBP收率达93％以上,产物经熔点测定和红外表征确认。A new flame retardant intermediate, 2-（2-hydroxyphenyl）-phenylphosphonic acid, was synthesized from o-phenylphenol （OPP） and phosphorus trichloride by two steps. By orthogonally designed experiments, the optimal synthetic conditions were obtained as follows, the amount of catalyst ZnCl2 was 0.6% based on OPP, n（PCl3） ： n（OPP）=1. 4 ： 1, after PCl3 was added in batches, reaction time 2 h at 220 ℃. Under these conditions, OPP conversion was above 99% and the yield of products was above 93 %.

关 键 词：2′-羟基联苯基-2-次膦酸 2-羟基联苯 阻燃剂 合成 

分 类 号：TQ314.248[化学工程—高聚物工业]