A variety of readily available aryl and α,β-unsaturated carbonyl compounds, on treatment with zinc and 1,2-bis(chlorodimethylsily)ethane, afford organozinc carbenoids which may be trapped with alkenes to give cyclopropanes.
W. B. Motherwell and L. R. Roberts, J. Chem. Soc., Chem. Commun., 1992, 1582 DOI: 10.1039/C39920001582
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