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Microwave-Assisted Synthesis of Phthalein Dyes
1  Department of Applied Chemistry, Institute of Technology, Banaras Hindu University, Varanasi-221005, India

Abstract: Some phthalein dyes have been synthesized by the condensation of phthalic anhydride with various phenols through a novel route of microwave irradiation technique under solvent free condition in high yields within minutes. The inexpensive, solvent free and fast reaction conditions are the important features of this procedure.