Solvent Free, Microwave Assisted Conversion of Aldehydes into Nitriles and Oximes in the Presence of NH2OH·HCl and TiO2

Aromatic aldehydes bearing electron-donating groups are easily converted into their respective nitriles using NH2OH·HCl and TiO2 under microwave irradiation, while those bearing an electron-withdrawing group give the corresponding oximes.