Abstract
Regioselective sulfenylations of dianions derived from 1, 3-dicarbonyl compounds were investigated with readily available sulfenylating agents such as diphenyl disulfide, phenyl benzenethiosulfonate, and phenylsulfenyl chloride, employing sodium hydride and butyl lithium or lithium diisopropylamide as bases. Sulfenylations of the dianions prepared from the β-ketoesters Ia, Ib and VI, the β-ketoamide Ic, and the 1, 3-diketones X and XIII with diphenyl disulfide afforded IIIa, IIIb, VIII, IIIc, XII, and XV, respectively, in fairly good yields.
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