Question

Draw the structures of organic compounds A and B. Omit all of the byproducts.

Draw the structures of organic compounds A and B. Omit all of the by products.

Answer 1

Concepts and reason

This problem is based on the concept of Grignard reagent reactivity.

Grignard reagent is a very good nucleophile in case of carbonyl compounds. It is made up by the reaction of haloalkane with Mg in the presence of ether. It attacks on carbonyl compounds followed by the treatment with water and forms corresponding alcohol.

Fundamentals

In order to predict the reactant from product, the reaction should be written backwards (from product to reactant).

The reaction is given below:

The first reaction of synthesis is given below:

Ans:

The structures of compounds A and B are as follow:

Answer 2

Answer 3