检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]黑龙江省科学院石油化学研究院,黑龙江哈尔滨150040
出 处:《化学与粘合》2010年第3期12-15,共4页Chemistry and Adhesion
基 金:黑龙江省科学院基金项目
摘 要:以9-溴菲为原料,采用格氏试剂法合成了9-菲硼酸。考察了亲核取代温度、反应原料配比以及反应时间等主要反应条件对合成反应收率的影响。采用高效液相色谱(HPLC)、傅立叶变换红外光谱(FTIR)、核磁(1HNMR)等方法对产品的结构和纯度进行了表征与分析。结果表明:合成9-菲硼酸的最佳工艺条件为:亲核取代温度为-40℃、反应物的摩尔配比为n(Mg):n(C14H9Br):n(B(OCH3)3)=1.1:1:1.5、9-溴菲的质量(g)与溶剂四氢呋喃(THF)的体积(mL)之比为1:7.5、亲核反应时间为3h。9-菲硼酸的收率最高可达71.24%,纯度可达99%。9-Phenanthrenylboronic acid was synthesized by using 9-bromophenanthrene as the starting material, according to Grignard reagent method. The effects of reaction conditions such as the nucleophilic substitution temperature (T), the reactant molar ratio, the ratio (R) of 9- bromophenanthrene (g) to THF (mL), the reaction time (τ) on the reaction yield were investigated . The structure and purity of product was characterized and analyzed by HPLC, FTIR and ^1HNMR. The optimal reaction condition for the synthesis of 9-phenanthreneboronic acid was obtained as follows: T=-40℃, the molar ratio of n (Mg) : n (Cl4H9Br) : n (B (OCH3)3)=1.1 : 1 : 1.5, R =1 : 7.5 and τ=3 h. Under the above reaction conditions, the yield of 9-phenanthreneboronic acid reached 71.24% and its purity was up to 99%.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:3.15.187.189