Question

Show how you would accomplish the following synthetic conversions. You may use any additional reagents and solvents you need.

Short answer

In this reaction the benzaldehyde oxidised to give the benzoic acid and on the treatment of SOCl₂, it would provide the benzoyel chloride. This intermediate on friel craft reaction gives benzophenone.

Step-by-step solution

Conversion from benzaldehyde to benzophenone.

In this reaction the benzaldehyde oxidised to give the benzoic acid and on the treatment of SOCl₂, it would provide the benzoyel chloride. This intermediate on friel craft reaction gives benzophenone.

Conversion from benzophenone to triphenylmethanol.

For the conversion of benzophenone to triphenylmethanol the Grignard reagent is used as PhMgBr

And hydrolysis in acid medium and result came.

Conversion from   benzophenone to diphenylmethanol.

It is just simple reduction here keto group is converted to hydroxyl group.

Conversion from benzaldehyde to 1-phenylpent-2-yn-1ol.

In the reaction the use of specific Grignard reagent and then hydrolysis results the products in this.