Several derivatives of N,N-bis(3,5-di-tert-butyl-4-hydroxybenzyl)-N-alkylamines were isolated in the reduction of the imines obtained from 3,5-di-tert-butyl-4-hydroxylbenzaldehyde and primary amines. Experimental results showed that they were transformed from the corresponding 2,6-di-tert-butyl-4-alkylaminomethylphenols.
Crystallographic data for the structures of compound 3a in this paper have been deposited with the Cambridge Crystallographic Data Centre as supplementary publication numbers CCDC 292401. Copies of the data can be obtained, free of charge, on application to CCDC, 12 Union Road, Cambridge CB2 1EZ, UK [Fax: + 44(0)-1223-336033; or http://deposit@ccdc.cam.ac.uk.
