Preparation of Samarium(II) Triflate and It Mediated Grignard-type Reaction. In Situ Formation and Reaction of New Organosamarium Reagents

Article abstract of DOI:10.1246/cl.1994.1981

Samarium(II) triflate was readily prepared by reaction of samarium(III) triflate with sec-butyllithium at room temperature in THF.Its reducing ability was examined by pinacol coupling of carbonyl compounds.Sm(OTf)2 mediated Grignard-type reaction in THF-HMPA effectively; alkylation and allylation of ketones or aldehydes by simple alkyl, allyl, and benzyl halides proceeded via organosamarium intermediates.