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Question:

The major product of the following reaction is:
CH3OH|CHCH2CH2NH2 + ethyl formate (1 equiv.) → triethylamine

CH3OH|CHCH2CH2NHCHO

CH3CH=CH−CH2NH2

CH3−OH|CH−CH=CH2

Solution:

The correct option is A CH3OH|CHCH2CH2NHCHO
Solution:- (A)
CH3OH|CHCH2CH2NHCHO
CH3OH|CH−CH2−CH2−NH2 + ethyl formate(1equiv) →triethylamine
CH3−OH|CH−CH2−CH2−NH−O||C−H
As NH2 is a better nucleophile than OH.