bis(o-formylphenyl)phenylphosphane 、
1,1'-dimethyl-P-phenyl-phosphonic-dihydrazide 在
selenium 作用下,
以
二氯甲烷 为溶剂,
以94%的产率得到12,14,28,30-tetramethyl-5,13,21,29-tetraphenyl-12,14,28,30-tetrahydro-5l5,21l5-tetrabenzo[g,j,s,v][1,2,4,5,13,14,16,17]octaaza[3,9,15,21]tetraphosphacyclotetracosine 13,29-dioxide 5,21-diselenide