MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Organic ChemistryAldehydes and ketonesChemical Reactions of Carbonyl compounds

Benzaldehyde condenses with N,N-dimethylaniline in presence of anhydrous ZnCl2 to give

A.Michler’s ketone

B.azo-dye

C.malachite green✓ Correct

D.buffer yellow

Explanation

Benzaldehyde is an aromatic compound having formula 퐶6퐻5퐶퐻푂 and the formula of N,N-Dimethylaniline is 퐶6퐻5푁(퐶퐻3)2. When they both react, there is formation of Malachite green which is a dye. The reaction is given below: Aldehydes and Ketones 11

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