两种含磷阻燃剂的合成及其结构表征

Synthesis and Characterization of Two Phosphorous-Containing Flame-Retardants

采用邻苯基苯酚及三氯化磷为原料,氯化锌为催化剂,以“一锅法”合成了新型含磷阻燃剂9,10-二氢-9氧杂-10-磷杂菲-10-氧化物(DOPO)及10-(2’,5’-二羟基苯基)-9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物(ODOPB),并通过红外光谱、1H核磁谱、元素分析等对这两种化合物进行结构鉴定。合成DOPO的方法,不采用有机溶剂,因而安全、环保、产品纯度高达99.5%,满足所有应用的要求。

Two novel phosphorous containing flame retardants： 9, 10- dihydro-9-oxa-10-phosphaphenanthrene-10-oxide-（DOPO） and 10- （2＇, 5＇-his（hydroxyl） phenyl）-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide（ODOPB） were synthesized by＂one pot＂process using o-phenyl phenol and phosphorus trichloride as starting materials and zinc chloride as catalyst. The structures of the obtained compounds were identified by IR,^1 HNMR and elemental analysis. The adapted method for synthesizing DOPO is non-solvent, therefore safe and environmental friendly. The purity of DOPO is 99.5 % from GC analysis. It will meet the requirements of all applications.