Synthesis of (p-substituted-tetrafluorophenyl) ethynes and diacetylene monomers containing fluoro-aromatic rings by nucleophilic substitution on [(pentafluorophenyl) …
Y Zhang, J Wen, W Du
Index: Zhang, Yadong; Wen, Jianxun; Du, Wenying Journal of Fluorine Chemistry, 1990 , vol. 49, # 2 p. 293 - 300
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Citation Number: 29
Abstract
Abstract Substitutions on [(pentafluorophenyl) ethynyl] trimethylsilane (1) with nucleophiles, Nu-X (2) give the corresponding [(p-substituted-tetrafluorophenyl) ethynyl] trimethylsilanes (3) or (p-substituted-tetrafluorophenyl) ethynes (4). The trimethylsilyl group of (3) can be easily removed by treatment with dilute alkali to give [(p-substituted-tetrafluorophenyl) ethynes (4). Diacetylenes containing fluoro-aromatic rings are prepared by the ...
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