Palladium-Catalyzed Carbon-Fluorine and Carbon-Hydrogen Bond Alumination of Fluoroarenes and Heteroarenes

被引:23
|
作者
Chen, Wenyi [1 ]
Hooper, Thomas N. [1 ]
Ng, Jamues [1 ]
White, Andrew J. P. [1 ]
Crimmin, Mark R. [1 ]
机构
[1] Imperial Coll London, Dept Chem, London SW7 2AZ, England
基金
欧盟地平线“2020”; 欧洲研究理事会;
关键词
alumination; C-F activation; C-H activation; fluoroarenes; hydrodefluorination; C-F ACTIVATION; OXIDATIVE ADDITION; BUILDING-BLOCKS; MEDICINAL CHEMISTRY; C(SP(3))-F BONDS; HYDRODEFLUORINATION; FUNCTIONALIZATION; RHODIUM; BORYLATION; CLEAVAGE;
D O I
10.1002/anie.201706378
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Through serendipitous discovery, a palladium bis(phosphine) complex was identified as a catalyst for the selective transformation of sp(2)C-F and sp(2)C-H bonds of fluoroarenes and heteroarenes to sp(2)C-Al bonds (19 examples, 1 mol% Pd loading). The carbon-fluorine bond functionalization reaction is highly selective for the formation of organoaluminium products in preference to hydrodefluorination products (selectivity=4.4:1 to 27:1). Evidence is presented for a tandem catalytic process in which hydrodefluorination is followed by sp(2)C-H alumination.
引用
收藏
页码:12687 / 12691
页数:5
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