This invention relates to a process for decarbonylation of aldehydes (R-CHO) comprising contacting the aldehyde with a solvent selected from the group comprising cyclohexane or dichloroethane in the presence of a palladium catalyst, optionally a base, under conditions that promote the catalyst to catalyze the decarbonylation of the aldehyde to yield a corresponding decarbonylated product. This invention also relates to a process for one-pot oxidation and decarbonylation of alcohol (R-OH) and a process for microwave assisted decarbonyation of aldehyde.