四氢吡咯

N,N-dimethyl-4-(2,2,3,4-tetraphenyl-1,2l⁵-oxaphosphetan-2-yl)aniline

N,N-dimethyl-2-(2,2,3,4-tetraphenyl-1,2l⁵-oxaphosphetan-2-yl)aniline

tribenzyl(phenyl)phosphonium bromide

5,5-dibenzyl-5H-benzo[b]phosphindolium, bromide