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Synthesis 1990; 1990(11): 991-992
DOI: 10.1055/s-1990-27071
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Sythesis of Heteroaromatic Ketene Dithioacetals

Jacklyn A. Goodwin* , Iris M. Y. Kwok, Basil J. Wakefield
  • *Department of Chemistry and Applied Chemistry, Cockcroft Building, University of Salford, Salford, M5 4WT, England
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Publication History

Publication Date:
17 September 2002 (online)

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Reaction of 2-methylpyridine with, successively, lithium diisopropylamide, carbon disulphide, and 1,2-dibromoethane or 1,3-dibromopropane, gives 2-(2-pyridylmethylene)dithiolane or 2-(2-pyridylmethylene)dithiane. Analogous reactions of 2-methylpyrazine, 2-methylquinoline, 2,6-dimethylpyridine and 2,3-dimethylpyrazine are reported.