SYNTHESIS OF 2,2′-DIHYDROXYBIPHENYL DERIVATIVES
Abstract
Synthesis of 2,2′-dihydroxybiphenyl-4,4-dicarboxylic acid by alkaline fusion of 1-nitro- and 1-methoxy substituted 5,5-dioxodibenzothiophene-3,7-dicarboxylic acids has been investigated. It has been shown that along with dibenzothiophene ring opening and formation of biphenyls, a cyclization reaction also occurred. Small amounts of dibenzofuran-3,7-and 4-hydroxycarbazole-2,7-dicarboxylic acids have been found among products of the reaction. New luminescent dyes based on 2,2′-hydroxybiphenyls have been synthesized.
About the Authors
V. G. Petushok
Institute of Chemistry of New Materials National Academy of Science of Belarus
Belarus
Scientific Researcher.
Belarus
Scientific Researcher.
G. V. Kalechytc
Institute of Chemistry of New Materials National Academy of Science of Belarus
Russian Federation
Scientific Researcher
Russian Federation
Scientific Researcher
V. K. Olkhovic
Institute of Chemistry of New Materials National Academy of Science of Belarus
Russian Federation
Ph. D. (Chemistry), Head of laboratory.
Russian Federation
Ph. D. (Chemistry), Head of laboratory.
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