Lewis acid-catalyzed tandem synthesis of 9-sulfonylamino- and 9-arylfluorenes

Lewis acid-catalyzed tandem synthesis of 9-sulfonylamino- and 9-arylfluorenes
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路易斯酸催化串联合成 9-磺酰氨基-和 9-芳基芴

DOI:
10.1039/c6ra03889a
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发表时间:
2016-05
期刊:
影响因子:
3.9
通讯作者:
Hu Yuefei
Hu Yuefei
中科院分区:
化学3区
文献类型:
--
作者:
Huang Dayun;Yang Weiguang;Zhang Jianlan;Wang Xuesong;Wang Xinyan;Hu Yuefei

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采用刘易斯酸催化,以2-甲酰基联苯、TsNCO和芳烃为原料,经简单加热,三步串联合成了9-芳基芴。在无芳烃存在下,采用两步串联法合成了9-磺酰氨基芴。这些进展主要归功于发现了由TsNCO和芳醛无水合成N-对甲苯磺酰基芳醛亚胺的方法。
A Lewis acid-catalyzed three-step tandem synthesis of 9-arylfluorene was developed by simply heating a mixture of 2-formyl biphenyl, TsNCO and an arene. In the absence of arene, a two-step tandem synthesis of 9-sulfonylaminofluorene was achieved. These advances were mainly attributed to the discovery of an anhydrous synthesis of N-tosyl arylaldimines from TsNCO and arylaldehydes.
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