Cf. Klitzke et Ra. Pilli, Enhanced trans diastereoselection in the allylation of cyclic chiral N-acyliminium ions. Synthesis of hydroxylated indolizidines, TETRAHEDR L, 42(33), 2001, pp. 5605-5608
A short synthesis of hydroxylated indolizidines is reported. The key steps
were the allylation of chiral cyclic N-acyliminium ions derived from malic
and tartaric acids. followed by ring-closing metathesis. (C) 2001 Elsevier
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