Radical Metal-Free Borylation of Aryl Iodides

被引:27
作者
Pinet, Sandra [1 ]
Liautard, Virginie [1 ]
Debiais, Megane [1 ]
Pucheault, Mathieu [1 ]
机构
[1] Univ Bordeaux, Inst Sci Mol, Bordeaux INP, UMR CNRS 5255, 351 Cours Liberat, F-33405 Talence, France
来源
SYNTHESIS-STUTTGART | 2017年 / 49卷 / 21期
关键词
metal-free borylation; radical process; cesium fluoride; pyridine; PALLADIUM-CATALYZED BORYLATION; ARYLBORONIC PINACOL ESTERS; POTASSIUM TERT-BUTOXIDE; AMINE-BORANE COMPLEXES; ROOM-TEMPERATURE; AROMATIC-AMINES; MILD CONDITIONS; BOND FORMATION; BORINIC ACIDS; BORON SOURCE;
D O I
10.1055/s-0036-1588431
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A simple metal-free borylation of aryl iodides mediated by a fluoride sp(2)-sp(3) diboron adduct is described. The reaction conditions are compatible with various functional groups. Electronic effects of substituents do not affect the borylation while steric hindrance does. The reaction proceeds via a radical mechanism in which pyridine serves to stabilize the boryl radicals, generated in situ.
引用
收藏
页码:4759 / 4768
页数:10
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