A facile synthesis of 1,4-dialkoxy-2,5-diiodobenzenes via diiodination of the corresponding dialkoxybenzenes with iodine monochloride has been developed. Employment of an alcoholic solvent as a reaction medium is crucial for attaining a high yield; the reaction in a nonalcoholic solvent usually resulted in a poor yield. The diiodobenzene derivatives are useful intermediates in the synthesis of such advanced materials as soluble phenylenevinylene polymers and dialkoxy derivatives of 7,7,8,8-tetracyanoquinodimethane.

This study developed a facile synthesis of 1,4-dialkoxy-2,5-diiodobenzenes in alcoholic solvents, providing useful intermediates for advanced materials like soluble phenylenevinylene polymers and dialkoxy derivatives of 7,7,8,8-tetra

Paper

A Facile Synthesis of 1,4-Dialkoxy-2,5-diiodobenzenes: Reaction of Dialkoxybenzenes with Iodine Monochloride in Alcoholic Solvents

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