Question

Predict the major products of the following reactions.

b)

Short answer

b)

Step-by-step solution

Alkylation of enolate ions

Lithium diisopropyl amide (LDA) is used for the alkylation of enolate ions as it is a strong base and transforms the ketone to an enolate.

Predicting the major products of the reaction

(b) The reaction of the given compound with LDA and ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{Br}$ is 2-ethyloctahydronaphthalen-1(2H)-one. The reaction is given below:

Product of reaction (b)