Xw. Yang et al., Chiral pyrrolidine derivatives as catalysts in the enantioselective addition of diethylzinc to aldehydes, TETRAHEDR-A, 10(1), 1999, pp. 133-138
A series of pyrrolidine derivatives with beta-amino alcohol moieties prepar
ed from (S)-proline were found to catalyze the enantioselective addition of
diethylzinc to aldehydes to yield optically active secondary alcohols with
high enantioselectivities. A mechanism accounting for the configurational
change with the bulkiness of chiral ligands is proposed. (C) 1999 Elsevier
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