Acylation of the α-trimethylsilylallyl sulphides (2) by reaction with the acid halides (3)(1·2 equiv.) in the presence of aluminium chloride (1·2 equiv.) in methylene dichloride at –78 °C gave compounds (4a–i) in good yields with extremely high regioselectivity.
K. Hiroi and L. Chen, J. Chem. Soc., Chem. Commun., 1981, 377 DOI: 10.1039/C39810000377
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