VITEEE 2016 Paper

Section: Chemistry

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Question : 64 of 125

Marks: +1, -0

t-butyl - CH = CH -

C

||

O

- OH can’t give decarboxylation while normally α-β unsaturated acid give this reaction because

t-butyl gp. has large size and does not let the COOH group to leave
t-butyl gp. can’t extract H from COOH
t-butyl gp. stabilise carbanion formed
t-butyl gp. does not allow this composition to convert to β-γ-unsaturated acid

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