3-(bromomethyl)-6-tert-butyl-2,4-dimethylphenol 、 、
二环己基二硫代次膦酸 以to obtain 2,6-dimethyl-3-hydroxy-4-t-butylbenzyl dicyclohexylphosphinodithioate, m.p. 113°-116° C, which on testing的产率得到Dicyclohexyl-phosphinodithioic acid 4-tert-butyl-3-hydroxy-2,6-dimethyl-benzyl ester