how to convert Benzaldehyde to Benzophenone and how to convert ethanole to 3 hydroxybutanal - Chemistry - Aldehydes Ketones and Carboxylic Acids

Question

how to convert Benzaldehyde to Benzophenone? and how to convert
ethanole to 3 hydroxybutanal?

Sachin Verma · Answer

benzaldehde is C6H5CHO and benzophenone is
C6H5-CO-C6H5

C6H5CHO + KMnO4 (alkaline) ------> C6H5-COOH

C6H5-COOH + SOCl2 ------> C6H5-COCl

C6H5-COCl + C6H6 + AlCl3 --------> C6H5-CO-C6H5

how to convert Benzaldehyde to Benzophenone? and how to convert ethanole to 3 hydroxybutanal?