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2-氟-4-(反式-4-烷基环己基)苯基硼酸的合成
引用本文:李娟利,安忠维.2-氟-4-(反式-4-烷基环己基)苯基硼酸的合成[J].精细化工,2006,23(3):310-312.
作者姓名:李娟利  安忠维
作者单位:西安近代化学研究所,光电材料中心,陕西,西安,710065
摘    要:以1-(反式-4-烷基环己基)-3-氟苯与丁基锂、硼酸三丁酯、叔丁醇钾为反应物合成了2-氟-4-(反式-4-烷基环己基)苯基硼酸化合物3个,总收率为52%~56%,分别用IR,1HNMR对其结构进行了鉴定。优化了反应条件:n1-(反式-4-烷基环己基)-3-氟苯]∶n(叔丁醇钾)∶n(丁基锂)∶n(硼酸三丁酯)=1∶2∶1.2∶1.5,反应温度-85~-90℃,反应时间2.5 h。叔丁醇钾的加入使反应时间由7 h缩短至2.5 h。

关 键 词:丁基锂  硼酸三丁酯  叔丁醇钾  2-氟-4-(反式-4-烷基环己基)苯基硼酸
文章编号:1003-5214(2006)03-0310-03
收稿时间:2005-09-12
修稿时间:2005-09-122005-11-04

Synthesis of 2-Fluoro-4-( trans-4-alkylcyclohexyl)phenylboronic Acid
LI Juan-li,AN Zhong-wei.Synthesis of 2-Fluoro-4-( trans-4-alkylcyclohexyl)phenylboronic Acid[J].Fine Chemicals,2006,23(3):310-312.
Authors:LI Juan-li  AN Zhong-wei
Abstract:Three compounds of 2-fluoro-4-(trans-4-alkylcyclohexyl)phenylboronic acid were synthesized using 1-(trans-4-alkylcyclohexyl)-3-fluorobenzene,n-butyllithium,tributyl borate,and potassium tert-butoxide as reactants,their yields were 52%~56%,and their structures were confirmed by IR and ~1HNMR.The reaction conditions were optimized:n1-(trans-4-alkylcyclohexyl)-3-fluorobenzene]∶n(potassium tert-butoxide)∶n(n-butyllithium)∶n(tributyl borate)=1∶2∶1.2∶1.5,reaction temperature-85~-90 ℃ and reaction time 2.5 h.The addition of potassium tert-butoxide shortened the reaction time from 7 h to 2.5 h.
Keywords:n-butyllithium  tributyl borate  potassium tertbutoxide  2-fluoro-4-(trans-4-alkylcyclohexyl)phenylboronic acid  
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