| 1,1-(phenylphosphinidene)bis(2-methyl-piperidin |
| 1,1'-(phenylphosphinidene)bis(2-methylpiperidine) |
| 1,1'-(phenylphosphinidene)di-2-pipecoline |
| 1,1'-(phenylphosphinidene)di-2-pipecolin |
| bis(2-methylpiperidino)phenylphosphine |
| bis(2-methylpiperidino)phenyl-phosphin |
