CAS: 104197-13-9; 4-Bromo-2,6-Difluorophenol

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1,3-二氟苯置于正丁基锂,氢溴酸,双氧水,氢气体系中,用 四氢呋喃,乙醚,溶剂黄146 用作溶剂,化学反应 4.0H,反应生成4-溴-2,6-二氟苯酚
参考文献:Synthesis And Mesomorphic Properties Of Some Fluorinated Benzoate Liquid Crystals
标题:Synthesis And Mesomorphic Properties Of Some Fluorinated Benzoate Liquid Crystals
摘要:Three Series Of [4-(4'-N-Alkyloxyphenyl)Acetylenyl]-2,6-Difluorophenyl Fluorinated Benezoates And One Series Of Fluorinated Benzoates With 2,3,5,6-Tetrafluorophenylene Group And Semi-Perfluorocarbon Chain Have Been Synthesized. Their Phase Transition Temperatures Have Been Measured By Texture Observation In A Polarizing Microscope And Confirmed By Dsc. For The Series Without Fluorocarbon Chains,Increasing The Quantity Of Fluorosubstituents On The Terminal Phenyl Groups Decreased Nematic Stability (Tn-1),But The Breadth Of The Sma Phase Range Was Increased. Lateral Fluorosubstitution In The Central Group Lowered The Nematic Stability (Tn-1) And Decreased The Breadth Of The Sma Phase Range. The Series With Semiperfluorocarbon Chains Were More Likely To Form Sma Phases Than The Series With Hydrogencarbon Chains,And With The Increasing Of Fluorosubstituents Quantity On The Terminal Phenyl Groups Nematic And Sma Stability (T(N-)1 And Tsma-N) Were Both Decreased.
Doi:10.1080/10587250210534