The cationic rhodium(I) complex(+)- or (–)-2,2′bis(diphenylphosphino)-1,1′-binaphthyl(cyclo-octa-1,5-diene)rhodium perchlorate, effectively catalyses the isomersiation of N,N-diethylnerylamine or N,N-diethylgeranylamine to produce optically active N,N-diethylcitronellal-(E)-enamine with excellent enantioselectivity (> ca. 95% enantiomeric excess) and chemoselectivity (> ca. 98%).
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Tani et al. (1982) studied this question.