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2005
Enantioselective syntheses
O 0031
Enantioselective Acylation of Secondary Alcohols Catalyzed by Chiral N-HeteroCarbenes. — The title reaction is carried out with vinylacetates in the presence
33- 039 cyclic
of chiral carbenes (I). The corresponding (R)-acylated alcohols and the (S)-alcohols are
obtained with good e.e. and modest yields. The reaction with methyl acetate proceeds
slowly and the resulting ester is found to be totally racemic. — (KANO, T.; SASAKI,
K.; MARUOKA*, K.; Org. Lett. 7 (2005) 7, 1347-1349; Dep. Chem., Grad. Sch. Sci.,
Kyoto Univ., Sakyo, Kyoto 606, Japan; Eng.) — R. Steudel
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