First product of the reaction between RCHO and NH _2 NH _2 :

NEET 2000 Chemistry question

First product of the reaction between and :

(1)Correct
(2)
(3)
(4)

Answer: (1)

Solution

Aldehydes undergo nucleophilic addition-elimination with hydrazine: the group of attacks the carbonyl carbon and water is lost to give the hydrazone (the first product;

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Question ID VK-088589