1.

In the following sequence of reactions, what is D ?

Answer»

Primary amine
An amide
Phenyl isocyanide
Chain lengthened hydrocarbon.

Solution :`underset("Toluene")(C_(6)H_(5)CH_(3)) underset("OXIDATION")OVERSET(O)(rarr) underset(underset((A))("Benzoic (acid)"))(C_(6)H_(5)COOH) underset(-SO_(2), -HCl)overset(SOCl_(2))(rarr) underset((B))underset("Benoyl chloride")(C_(6)H_(5)COCL) underset(-NaCl)overset(NaN_(3))(rarr) underset(underset((C))("BENZOYL azide"))(C_(6)H_(5)CON_(3)) underset(underset("rearrangemet)")("(CURTIUS"))overset("Heat")(rarr) underset((D))underset("Phenyl isocynanate")(C_(6)H_(5)-N=C=O)`


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