Oxidation–reduction and heterocyclization of the reactions of alkanedithiols with π-deficient compounds
The reaction of 1,2-ethanedithiol and 1,3-propanedithiol with π-deficient compounds afforded various oxidation–reduction and cyclized products under mild conditions. Heterocycles containing one sulfur atom (e.g. analogues of seriniquinone) were also obtai
Routes to building blocks for heterocyclic synthesis by reduction of ketene dithioacetals
Two general methods have been developed permitting the effective reduction of ketene dithioacetals to give substituted dithianes. Reduction with magnesium in methanol is less reliable than reduction with zinc in acetic acid. The greater inconsistency of magnesium in methanol has been investigated by a cyclic voltammetric study of the substrates. The utility of the dithianes has been successfully illustrated by cyclisations to afford, after deprotection, a variety of heterocyclic aldehydes.
Mellor, John M.,Schofield, Stephen R.,Korn, Stewart R.
p. 17151 - 17162
(2007/10/03)
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