1.

How would you obtain the following : (a) But-2-enal from ethanal(b) Butanoic acid from butanol (c ) Benzoic acid from ethylbenzene

Answer»

SOLUTION :(a) But-2-enal from ETHANAL
`underset("Ethanal")(CH_(3) CHO ) overset(NaOH )(rarr) ( CH_(3))underset(OH ) underset( |)(CH) - CH_(2) CHO underset( - H_(2) O ) overset( Delta) ( rarr) underset("But-2-enal")(CH_(3) CH = CHCHO)`
(b) Butanoic ACID from butanol `:`
`underset("Butanol")(CH_(3) CH_(2)CH_(2) CH_(2)-OH) overset( KMnO_(4))(rarr) underset("Butanoic acid")(CH_(3)CH_(2)CH_(2)COOH)`
(c ) Benzoic acid from ethylbenzene `:`


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