Indian Journal of Chemistry: Organic including medicinal. Section B, Volume 21

Abstr acetic acid acetone activity alcohol aldehydes alkaloids anhydride anhydrous Ar-H bands benzene benzyl bromide Calc carbon carbonyl CDCI CH₂ Chem chemical shifts chloride chloroform chromatography cm-¹ colourless Compd compounds condensation cooled crystallised crystals CSIR cyclisation Delhi Department of Chemistry derivatives dioxane distilled dried elution ester ethanol ethyl acetate EtOH extracted with ether filtered Found gave give heated hydrazone hydrogen IIIa INDIAN JOURNAL ketone mass spectra Melting points method methyl methylene NaOH nujol obtained OCH3 oxidation phenyl PMR spectra prepared presence procedure protons pyridine R₁ R₂ reaction mixture refluxed reported requires residue revised and accepted ring room temperature silica gel sodium sodium borohydride solid solution solvent spectral data spectrum stirred structure substituted synthesis Table Tetrahedron Tetrahedron Lett tion VIII washed with water yield