ECOFRIENDLY FAST BATCH SYNTHESIS OF DIOXOLANES, DITHIOLANES, AND OXATHIOLANES WITHOUT SOLVENT UNDER MICROWAVE IRRADIATION

2,2-Dimethoxypropane and 3,3-dimethoxypentane react with 1,2-ethanedio l, thio, and oxathio analogues to give the corresponding protected car bonyls in high yield under mild solvent-free conditions, These environ mentally benign conditions under microwave irradiation are applied to a large-scale synthesis.