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hmily601

木虫 (正式写手)

[求助] 帮忙译下。 (有机化学专业)

Aromatic groups lacking an electron-donating substituent worked less well with a similar trend regarding ortho substitution (32d, 32j).Electron-poor aromatic rings were introduced in generally poorer yields (32g, 32h,32o). A similar reactivity range was observed for heterocycles;i.e., an electron-rich indole ring was added in high yield (32k),whereas electron-poor pyridylboronic acids were unreactive(32m, 32n). Copper-mediated direct functionalization of hetero-cycles with amides and the cross-coupling of bromides using the protocols of Wang and Schreiber (46) and Borthwick et al. (47),respectively, were unsuccessful.
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jwdxbjzh

至尊木虫 (职业作家)

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sltmac(金币+1): 谢谢交流,欢迎常来~~ 2011-05-25 08:55:05
无供电子取代基的芳基不能表现出邻位取代芳基相似的趋势(32d, 32j)。贫电子芳环通常获得较差的收率(32g, 32h, 32o)。 对于杂化化合物而言,相似的反应范围被观察到。即,富电子吲哚环引入后获得了高的收率(32k),而贫电子的吡啶硼酸却几乎不反应(32m, 32n)。分别在铜催化下胺对杂环化合物的直接功能化以及用Wang、Schreiber (46) 和Borthwick等 (47)的方法对溴化物的交叉偶联,但都不成功。
jwd
2楼2011-05-25 07:39:14
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jwdxbjzh

至尊木虫 (职业作家)

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hmily601(金币+15, 翻译EPI+1): 学习了!!谢谢哈! 2011-05-25 13:52:58
在最后一句改为:分别考察了在.......交叉偶联反应,但都不成功。
jwd
3楼2011-05-25 07:57:54
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