Shl. Kok et Tkm. Shing, A new synthetic approach towards N-alkylated 2-epi-valienamines via palladium-catalyzed coupling reaction, TETRAHEDR L, 41(35), 2000, pp. 6865-6868
Preparation of N-alkylated 2-epi-valienamines was accomplished by the palla
dium-catalyzed coupling reaction of the allylic chloride 5 with various ami
nes in the presence of trimethylolpropane phosphite (TMPP). The 2-epi-valie
namine precursor (i.e, allylic chloride 5) was obtained from the reaction o
f diol 2 with Viehe's salt and the diol 2 was readily prepared from (-)-qui
nic acid in 10 steps. (C) 2000 Elsevier Science Ltd. All rights reserved.