Ws. Jin et al., PREPARATION OF VICINAL DIIMINES - A NEW DEHYDROGENATIVE COUPLING REACTION OF ALDIMINES MEDIATED BY YTTERBIUM METAL, Chemical communications, (10), 1998, pp. 1101-1102
Dehydrogenative coupling takes place to give vicinal diimine compounds
in the reaction of aromatic aldimines with ytterbium metal followed b
y treatment with aromatic aldehydes such as 1-naphthaldehyde (1-NpCHO)
as a hydrogen acceptor.