A convenient synthesis of some α-oxoketene-N,S- and N,N-acetals |
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Authors: | H. Loghmani-Khouzani M. M. Sadeghi M. H. Ghorbani |
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Affiliation: | 1. Department of Chemistry, Isfahan University, Isfahan, 81746-73441, Iran
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Abstract: | Some α-oxoketene-N,S- and N,N-acetals were selectively synthesized in good to excellent yields by the reaction of 1,1-dimethoxy-4,4-di(methylthio)-3-buten-2-one with primary and secondary amines under moderate conditions. Secondary amines in reaction with α-oxoketene dithioacetal yielded double-substitution products exclusively, whereas primary amines under the same conditions yielded the mono-substituted products as exclusive or main products. |
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