Cobalt-Catalyzed C-H Activation/Annulation of Benzamides with Fluorine-Containing Alkynes: A Route to 3- and 4-Fluoroalkylated Isoquinolinones.

Cobalt-Catalyzed C-H Activation/Annulation of Benzamides with Fluorine-Containing Alkynes: A Route to 3- and 4-Fluoroalkylated Isoquinolinones.
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含氟炔烃的苯甲酰基的钴催化的C-H激活/环向:进入3和4-氟烷基化异喹啉酮的途径。

DOI:
10.1021/acs.joc.1c00080
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发表时间:
2021-04-02
期刊:
The Journal of organic chemistry
影响因子:
--
通讯作者:
Konno T
Konno T
中科院分区:
其他
文献类型:
--
作者:
Kumon T;Wu J;Shimada M;Yamada S;Agou T;Fukumoto H;Kubota T;Hammond GB;Konno T

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在Co(acac)_2·2H_2O催化剂存在下,不同的苯甲酰胺与氟烷基化炔的C-H活化/成环反应非常顺利地进行,得到了相应的3-和4-氟烷基化异喹啉酮,产率高,区域选择性约为70%。这些区域异构体可以成功地分离并以纯的形式获得。根据X射线晶体学分析,主要或次要区域异构体分别确定为4-或3-氟烷基化异喹啉酮。
The C–H activation/annulation reaction of various benzamides with fluoroalkylated alkynes in the presence of a Co(acac)2·2H2O catalyst proceeded very smoothly to give the corresponding 3- and 4-fluoroalkylated isoquinolinones in excellent yields with approximately 70% regioselectivities. These regioisomers could be successfully separated and obtained in pure form. Major or minor regioisomers were determined as 4- or 3-fluoroalkylated isoquinolinones, respectively, based on X-ray crystallographic analyses.
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