1.

Given below are the structures of five organic compounds (1) to (5) which can tautomerise. underset(2)("PhCOCH"_(2)"COCH"_(2)) "" underset(2)("PhCOCH"_(2) CH_(3)), underset(3)("PhCOCH"_(2)"COOC"_(2)H_(5)) Select from the following the incorrect statement regarding the enolization of the above mentioned.

Answer»

(5) is EXTENSIVELY enolized compared to (4).
(4) is extensively enolized compared to (5).
(1) is extensively cnolized compared to (2).
Enol content of (3) is more than of (2).

Solution :(B) :Compounds (1), (3), (5) have active methylene GROUP, hence can be extensively cnolized.


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