Tetrahedron letters

Samarium/N-bromosuccinimide-induced reductive dimerization of carbonyl compounds

BK Banik, I Banik, S Samajdar, R Cuellar

Index: Banik, Bimal K.; Banik, Indrani; Samajdar, Susanta; Cuellar, Rogelio Tetrahedron Letters, 2005 , vol. 46, # 13 p. 2319 - 2322

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Citation Number: 8

Abstract

Reductive coupling of carbonyl compounds to pinacols using samarium–iodine in methanol and samarium/iodine–titanium isopropoxide was achieved. 8 A bivalent salt free samarium bis (trifluoromethanesulfonate) complex was used for intermolecular pinacol coupling reactions of aromatic ketones to diols with high diastereoselectivity (dl isomer was predominantly formed). 9 Diastereoselective pinacol coupling alkyl aryl ketones with samarium in the ...