Journal of the American Chemical Society p. 2942 - 2945 (2012)
Update date:2022-07-30
Topics:
Ibrahim, Ahmad A.
Nalla, Divya
Van Raaphorst, Maxwell
Kerrigan, Nessan J.
In this Communication we describe an unprecedented catalytic asymmetric heterodimerization of ketenes of wide substrate scope. The alkaloid-catalyzed method provides access to ketene heterodimer β-lactones and allows even two different monosubstituted ketenes to be cross-dimerized, with excellent enantioselectivity (17 examples with ≥90% ee) and excellent heterodimer regioselectivity observed in all cases.
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