To learn how different compounds are prepared by the reactions of carbonyl moiety and to introduce how the reactivity can be explained to allow the introduction of functional group next to carbonyl group.
Synthesis from acid chlorides, 1,3-dithianes and enamines, nitriles and carboxylic acids;mechanism of nucleophilic addition reaction to carbonyl group with particular emphasis on Benzoin,Perkin, aldol, Knoevenagel condensations,Reformatsky reaction and Dieckman condensation,condensation with ammonia & its derivatives including reactions with primary & secondary amines, Mannich & Wittig reactions.
Use of acetals as protecting groups.Oxidation of aldehydes,Baeyer-Villiger oxidation of ketones,Oppenauer oxidation.Cannizzaro’s reaction, MPV, Clemmensen,Wolff-Kishner, LiAlH4, NaBH4 reductions.
Introduction, acidity of α- hydrogens, keto-enol tautomerism of ethylacetoacetate, evidences in favour of keto-enol tautomerism, synthesis of ethylacetoacetate (Claisen condensation) and diethyl malonate, alkylation of ethylacetoacetate and diethyl malonate.
Pre requisite: Nomenclature, structure and physical properties, reduction of carboxylic acid to primary alcohol.
Acidity of carboxylic acids, effect of substituents on acidity; methods of preparation, reactions of carboxylic group, conversion of carboxylic acid into acid chlorides, anhydrides, amides, & esters, decarboxylation, Hell Volhard Zelinsky reaction.
Basicity,relative stability of acyl derivative,physical properties , chemical reactions , mechanism of esterification & hydrolysis ( acid & base catalysed ) ,mechanism and reactivity in nucleophilic acyl substitution.