SYNTHESIS OF NEW PYRANE AND CYCLOHEXANONE DERIVATIVES ON THE BASE OF SOME KNOEVENAGEL ADDUCTS
The formation of cyclohexanone and 3,4-dihydro-2H-pyran derivatives by using of Michael addition reaction between the 3-(4-tolyl)-, 3-(4-methoxyphenyl)-, 3-phenyl-, 3-pyridinyl-2-(thiophene-2-carbonyl)acrylonitriles or 3-(4-tolyl)-, 3-(thiophen-2-yl), and 2-(4-bromobenzoyl)-3-(4-fluorophenyl)acrylonitriles to the acetoasetanilid were observed. Structures of all synthesized compounds confirmed by nuclear magnetic resonance spectroscopy and X-Ray analysis.
doi.org/10.32737/0005-2531-2020-2-39-47
Keywords : thiophene, acrylonitriles, acetoacetanilide, cyclohexanone, dihydropyran, nuclear magnetic resonance
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