for the following products
1,1'-bis-(4-(Dip-tolyamino)phenyl)cyclohexane | 1,1-bis-(4-bis-(4-Methyl-phenyl)-amino-phenyl)-cyclohexane | 1,1-bis-[4-[N,N-di-(p-Tolyl)amino]phenyl]cyclohexane | 4,4-(Cyclohexane-1,1-diyl)bis(N,N-di-p-tolylaniline) and 4,4'-Cyclohexylidenebis[N,N-bis(4-methylphenyl)aniline]
