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张超峰

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Initially, the direct arylation of benzothiazole with iodo-benzene was chosen as a model reaction and the roles of various metal–TMHD complexes, bases and solvents were investigated ( Table 1). Complexes of Ru and Co were found to be completely ine ective using the present conditions, whereas Cu(TMHD)2 was found to give only a 20% yield. In comparison, Pd(TMHD)2 was found to be highly active providing an excellent yield (86%) of the desired product.
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频回眄睐

至尊木虫 (职业作家)

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sltmac: 金币+1 2012-05-07 08:48:02
张超峰: 金币+15, 翻译EPI+1 2012-05-08 09:22:53
起初,对于苯并噻唑的导向芳基化,我们选择碘苯的反应模型,考察了不同的金属-TMHD复合物,碱和溶剂(如表1所示)。我们发现Ru和Co复合物对目前条件完全无效,而Cu(TMHD)2仅能产生20%的产物。相比较而言,Pd(TMHD)2具有高反应活性,以优秀的产率(86%)得到目标产物。
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2楼2012-05-06 23:16:06
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