Tetrahedron Letters p. 1693 - 1696 (1992)
Update date:2022-08-11
Topics:
Heaton, Steven B.
Jones, Graham B.
The preparation of a rationally designed catalyst system derived from norephedrine is reported.The key stereodirective element emanates from a chromium tricarbonyl group complexed to one face of the aryl ring.The catalysts mediate the addition of diethyl zinc to a variety of aldehydes with extremely high enantioselectivity.Key Words: enantioselective catalyst; norephedrine; arene chromium tricarbonyl; diethyl zinc; chiral 1,2-addition
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