P. Vandeweghe et J. Collin, DIIODOSAMARIUM, AN EXCELLENT CATALYST PRECURSOR FOR ALDOLISATION AND MICHAEL REACTIONS, Tetrahedron letters, 34(24), 1993, pp. 3881-3884
SmI2 is the precursor of efficient catalysts for the aldolisation reac
tions of aldehydes and ketones with enol silanes, alpha,beta-unsaturat
ed ketones give 1,4-additions selectively.