THE SYNTHESIS OF NOVEL 1-HETARYLMETHYLIDENE-4-SULFANYLFURO[3,4-<i>c</i>]PYRIDIN-3(1<i>H</i>)-ONES
DOI:
https://doi.org/10.1007/6736Keywords:
1-hetarylmethylidene-6-methyl-4-sulfanyl-1, 3-dihydrofuro[3, 4-c]pyridin-3-ones, 1-hetarylmethylidene-6-methyl-4-thioxo-4, 5-dihydrofuro[3, 4-c]pyridin-3-one, alkylationAbstract
1-Hetarylmethylidene-4-sulfanylfuro[3,4-c]pyridin-3-ones were accessed from 4-thioxo-4,5-dihydrofuro[3,4-c]pyridin-3(1H)-one employing a condensation reaction with heteroaromatic aldehydes followed by thioalkylation, but not vice versa. Alkylation of 1-hetarylmethylidene-6-methyl-4-thioxo-4,5-dihydrofuro[3,4-c]pyridin-3-ones in an alkaline medium proceeded regioselectively at the sulfur atom to form sulfanyl derivatives.
Authors: Elena А. Kaigorodova, Natal'ya А. Makarova, Leonid D. Konyushkin, Gennady D. Krapivin*