N. Nedolya, O. Tarasova, A. Albanov
Jun 30, 2018
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Influential Citations
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Journal
Russian Journal of Organic Chemistry
Abstract
Derivatives of 2,3,6,7-tetrahydro-5H-[1,3]thiazolo[3,2-a]pyridine and 5,6-dihydropyridin-2(1H)-one were unexpectedly obtained at treating methyl 2-[(6-methyl-3-ethoxy-5,6-dihydropyridin-2-yl)sulfanyl]-acetate with a dilute solution of hydrochloric acid. Their formation resulted from the hydration of 5,6-dihydropyridine at the C=N bond accompanied with the elimination of a methyl 2-sulfanylacetate molecule and the addition of the methyl 2-sulfanylacetate to the second 5,6-dihydropyridine molecule at the C3=C4 bond followed by the elimination of a methanol molecule and the closure of a thiazole ring.