1.

Which of the esters shown, after reduction with LiAlH_(4) and aqueous work up, will yield two molecules of only a single alcohol?

Answer»

`C_(6)H_(5)COOC_(6)H_(5)`
`CH_(3)CH_(2)COOCH_(2)CH_(3)`
`C_(6)H_(5)COOCH_(2)C_(6)H_(5)`
`CH_(3)COOCH_(3)`

Solution :Esters in which acyl and alkyl/aralkyl groups contain the same number of carbon atoms would GIVE two molecules of the same alcohol, i.e.,
`C_(6)H_(5)CO OCH_(2)C_(6)H_(5) underset((ii)" "H_(3)O^(+))overset((i)" "LiAlH_(4)//ether)to underset("Benzyl alcohol")(2C_(6)H_(5)CH_(2)OH)`


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