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Reaction with Amines: The reaction of carbony l compounds with amines involves the formation of an intermediate carbinolamine which undergoes dehydration to form an immonium cation which can loose a proton to form the neutral imine Hah +Ho H由H H2N Some examples of common imine-forming reactions are given be low: NHOH +H. hydroxylamine 8 micar baz加ne Hoo semicarbazide H20 2 4dimitrophenyhydrazine .. a 2 dinitrophenylhydrazone Imines formed from secondary amines can loose a proton from the a-carbon to form an enamine. Because of resonance, enamines maintain a partial carbanion character on the a-carbon and can be utilized as nucleophiles, as will beReaction with Amines: The reaction of carbonyl compounds with amines involves the formation of an intermediate carbinolamine which undergoes dehydration to form an immonium cation which can loose a proton to form the neutral imine. Some examples of common imine-forming reactions are given below: Imines formed from secondary amines can loose a proton from the −carbon to form an enamine. Because of resonance, enamines maintain a partial carbanion character on the −carbon and can be utilized as nucleophiles, as will be
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