A method for preparing a biphenylphosphonate compound of the following formula (I):
wherein n is 2 or 3; Ar is a C
6
-C
16
aromatic group; which comprising (a) reacting an o-phenylphenol with a phosphorus trichloride in the presence of a zinc chloride catalyst to form a 6-chloro-6H-dibenz [c,e][1,2] oxaphosphorin of the following formula (II);
(b) reacting a polyhydroxybenzene compound of the formula (III)
(HO)
n
—Ar (III)
wherein n and Ar are defined the same as the above, with the compound of formula (II) to form a compound of the following formula (IV)
wherein n and Ar are defined the same as the above; and (c) oxidizing the compound of formula (IV) in the presence of water and ozone to form the compound of formula (I).
制备以下式(I)的
二苯基膦酸酯化合物的方法:其中n为2或3;Ar为C6-C16芳香基团;包括以下步骤:(a)在
锌氯化物催化剂存在下,将邻
苯酚与
三氯化磷反应,形成以下式(II)的6-
氯-6H-二苯[c,e][1,2]氧
磷杂环戊烷;(b)将式(III)的多羟基苯化合物(HO)n—Ar(III)(其中n和Ar的定义与上述相同)与式(II)的化合物反应,形成以下式(IV)的化合物;其中n和Ar的定义与上述相同;(c)在
水和
臭氧存在下氧化式(IV)的化合物,形成式(I)的化合物。