294. D. Müller, M. Tissot, A. Alexakis,
     “New Experimental Conditions for Tandem hydroalumination/Cu-Catalyzed Asymmetric Conjugate Additions to β-Substituted Cyclic Enones”
     Org. Lett. 2011, 13, 3040-3043.

Readily available alkenylalanes, arising from hydroalumination of unprotected terminal alkynes, have been directly employed for the copper-catalyzed asymmetric conjugate addition (ACA) to β-substituted cyclic enones. The desired products, containing a quaternary stereogenic center, are generally obtained in good yields and enantioselectivities.

DOI : 10.1021/ol200898c 

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