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123吴豆豆

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Bithiophenes, especially head-to-tail dimers, are useful precursors for high quality, well-defined, regioregular, oligo- and polythiophenes and their
derivatives. Kita developed a useful synthetic method for the regioselective homocoupling of thiophenes (Scheme 8.14). Switching the reactive position on thiophene by employing PhI(OH)OTs, they achieved the synthesis of the head-to-tail dimer 42 with a variety of 3,3-dialkyl- or 3,3-dialkoxy substituents
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genhunter

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123吴豆豆: 金币+10, 翻译EPI+1 2015-03-07 10:28:21
并二噻吩(?), 尤其是首尾连接的双体是合成高品质,结构确定,(晶态学结构)规整的寡聚和多聚噻吩及其衍生物的有用的前体。Kita 研发了一种实用的区域选择性噻吩均聚物合成路线(合成路线8.14)。使用 PhI(OH)OTs改变噻吩中的活性位点,他们合成了首尾连接的有多个  3,3-二烷基或 3,3-二醚基替代的双体42。
离成功还差一点
2楼2015-03-06 18:29:40
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