Question

Complete given synthesis by giving missing starting material, reagent or products. Refer Image.

Answer 1

The methylenecyclohexane will work in the presence of BH3 which will give a simple ring of Benzene attached to CH2 and B.

Then it will react with the H2O2/OH- which will give the cyclohexanecarbaldehyde compound.

This compound will then react in the presence of PCC to form a simple benzene ring with CHO attachment.