5,5-dimethyl-2-thiolo-2-thiono-1,3,2-dioxaphosphorinane 、 diethyltin oxide 以
苯 为溶剂,
以88.2%的产率得到8,10-dibutyl-3,3,15,15-tetramethyl-1,5,9,13,17,19-hexaoxa-7l4,11l4,18,20-tetrathia-6l5,12l5-diphospha-8l5,10l5-distannatetraspiro[5.1.1.1.512.110.18.16]icosa-6,11-diene