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作 者:祝艳龙 徐茂梁[1] 姜菡雨[1] 安永[1] 王歌扬[1]
出 处:《化学试剂》2014年第8期693-695,754,共4页Chemical Reagents
基 金:西安市经开区科技创新项目(JKZD110532)
摘 要:以2-溴-9,10-二(β-萘基)蒽为原料,在低温条件下得到9,10-二(β-萘基)蒽-2-硼酸,并通过核磁共振、红外光谱分析、元素分析、质谱分析对其结构进行了确认和表征。并探讨了不同反应条件对收率的影响,确定了反应的最佳条件为:在-78℃下,以叔丁基锂作为锂试剂,以物质的量比为n(卤代芳烃)∶n(锂试剂)∶n(硼酸酯)=1∶5∶6,分别滴加叔丁基锂、硼酸三异丙酯,收率可达76.80%。9, 10-Di (β-naphthyl) anthracene-2-boronic acid was synthesized by using 2-bromo-9, 10-di (β-naphthyl) anthracene as the starting material under thelow temperature, and the structure was confirmed by ^1HNMR, ^13CNMR, IR spectroscopy,elemental analysis and mass spectrometry. The effects on the reaction yield by conditions and different sub- stituents were discussed, the optimal reaction condition was obtained as follows: -78 ℃, using t-butyllithium as the lithium reagent, the molar ratio of halogenated aromatics: lithium reagents: borate = 1:5: 6,t-butyllithium and triisopropyl borate was added ,respectively. The yield was up to 76. 80%.
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