Abstract
3-Keto-5-alkylthiophane-4-carboxylic acid esters were synthesized by acylation of Meldrum acid with S acetylthioglycolic acid chloride, followed by alcoholysis of 2,2-dimethyl-4,6-dioxo-5-acetylthiomethyl-1,3-dioxane to γ-(acetylthio)acetoacetic acid esters. These were treated by aldehydes and the crotonic condensation products were cyclized.
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Schedule a callMore From: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science
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