Unusual Cleavage of Ethers by Thiophenol on the Surface of Silica Gel Impregnated with Indium(III) Chloride under Microwave Irradiation: Efficient Procedure for the Synthesis of Thioethers through Transthioetherification - Ranu, Brindaban C; Samanta, Sampak; Hajra, Alakananda (Synlett, 2002)