6,6,13,13-tetrahydro-6,6,13,13-tetraphenyl<1,3,2,4>diazadiphospheto<2,1-b:4,3-b'>bis<1,3,2>benzoxazaphosph(V)ole 、
生成 1',1'-diphenylspiro[2H-1,3λ5-benzoxaphosphole-3,10'-9,18-dioxa-2,11-diaza-1λ5,10λ5-diphosphapentacyclo[9.7.0.02,10.03,8.012,17]octadeca-3,5,7,12,14,16-hexaene]