Synthesis of chiral non-racemic azetidines by lipase-catalysed acetylations and their transformation into amino alcohols: precursors of chiral catalysts
G. Guanti et R. Riva, Synthesis of chiral non-racemic azetidines by lipase-catalysed acetylations and their transformation into amino alcohols: precursors of chiral catalysts, TETRAHEDR-A, 12(4), 2001, pp. 605-618
Azetidinic mono-acetate 7, diol 6b and di-acetate 10a were prepared with hi
gh e.e. using PPL-catalysed acetylations. The absolute configurations of al
l new enantioenriched compounds were assigned by chemical correlation with
known compounds. Mono-acetate 7 was then transformed into 30, an amino alco
hol of noteworthy potential interest since it represents an interesting pre
cursor for chiral catalysts, such as 32. (C) 2001 Elsevier Science Ltd. All
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