N-[benzyl(diethylamino)phosphanyl]-N-ethylethanamine

2-bromo-4-methyl-N-nitro-aniline

N-[4-[bis(diethylamino)phosphanyl]butyl-(diethylamino)phosphanyl]-N-ethylethanamine

1-N,1-N,1-N',1-N'-tetraethyl-3-methyl-2,5-dihydrophosphol-1-ium-1,1-diamine

1-N,1-N,1-N',1-N'-tetraethyl-3,4-dimethyl-2,5-dihydrophosphol-1-ium-1,1-diamine