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  1. D. Willcox, S. Woodward, A. Alexakis,
    “Enantioselective 1,4-additions of ClMeAl(CH=CHR) (R = alkyl, alkenyl, Ph) to cyclohexenones”
    Chem. Commun. 2014, 50, 1655-1657.

Chloromethylvinyl alanes (E)-ClMeAl(CH=CHR) prepared directly from terminal alkynes undergo 1,4-addition to cyclohexenone and 3-methylcyclohexenone in moderate to good yield (30–70%) and good to excellent stereoselectivity (80–98% ee) using readily available copper(I) sources and chiral ligands.

DOI : 10.1039/c3cc48191c 

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