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 、
三苯基膦 以
乙腈 为溶剂,
以73.2%的产率得到4-triphenylphosphinimino-1,3,5,7-tetramethyl-2,2,6,6-tetraoxa-2,6-dithia-1,3,5,7-tetraaza-4λ
6-phosphaspiro<3.3>heptane