2,2,3,3,7,7,8,8-octamethyl-1,4,6,9-tetraoxa-5λ5-phospha-spiro[4.4]nonane 、
1,1-双(二乙氧基磷酰基)乙烯 反应 4.0h,
以100%的产率得到[1-(Diethoxy-phosphoryl)-2-(2,2,3,3,7,7,8,8-octamethyl-1,4,6,9-tetraoxa-5λ5-phospha-spiro[4.4]non-5-yl)-ethyl]-phosphonic acid diethyl ester