21. Aldehydes and Ketones: Nucleophilic Addition

Predict the major products of the following reactions:

(b)

Propose a mechanism for both parts of the Wolff–Kishner reduction of cyclohexanone: the formation of the hydrazone, and then the base-catalyzed reduction with evolution of nitrogen gas.

Predict the products formed when cyclohexanone reacts with the following reagents.

(i) hydrazine, then hot, fused KOH

Identify A–J:

Show the product expected by the Wolff–Kishner reduction of the following aldehydes/ketones.

(a)

Propose a mechanism for both parts of the Wolff–Kishner reduction of cyclohexanone: the formation of the hydrazone, and then the base-catalyzed reduction with evolution of nitrogen gas.

Predict the major products of the following reactions:

(c)