4-azido-1,3,5,7-tetramethyl-2,2,6,6-tetraoxa-2,6-dithia-1,3,5,7-tetraaza-4λ5-phosphaspiro<3.3>heptane 、
双二苯基膦甲烷 以
乙腈 为溶剂,
以75.3%的产率得到[Diphenyl-[(1,3,5,7-tetramethyl-2,2,6,6-tetraoxo-2$l^{6},6$l^{6}-dithia-1,3,5,7-tetraza-4$l^{5}-phosphaspiro[3.3]heptan-4-yl)imino]-$l^{5}-phosphanyl]methyl-diphenyl-[(1,3,5,7-tetramethyl-2,2,6,6-tetraoxo-2$l^{6},6$l^{6}-dithia-1,3,5,7-tetraza-4$l^{5}-phosphaspiro[3.3]heptan-4-yl)imino]-$l^{5}-phosphane