Author： Marinho Vanda Burke Anthony
Publisher： Taylor & Francis Ltd
ISSN： 0039-7911
Source： Synthetic Communications, Vol.39, Iss.24, 2009-01, pp. : 4423-4428
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Abstract
One relatively unexploited commercial ligand, Walphos 1, was tested in the Pd(0)-catalyzed asymmetric allylic alkylation using rac-1,3-diphenyl propenyl acetate and rac-1-acetoxycyclohexene as substrates, methyl malonate as nucleophile, and a variety of Pd precatalysts under standard conditions. The conversions and enantioselectivities were generally good, with the greatest substrate conversion of 99% and a greatest ee of 70%. With the latter cyclic substrate, an enantioselectivity of 98% was obtained, but the conversions were all poor (15-33%).
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