A Ritter-Type Reaction: Direct Electrophilic Trifluoromethylation at Nitrogen Atoms Using Hypervalent Iodine Reagents

被引:129
作者
Niedermann, Katrin [1 ]
Frueh, Natalja [1 ]
Vinogradova, Ekaterina [1 ]
Wiehn, Matthias S. [1 ]
Moreno, Aitor [1 ]
Togni, Antonio [1 ]
机构
[1] Swiss Fed Inst Technol, Dept Chem & Angew Biowissensch, CH-8093 Zurich, Switzerland
关键词
electrophilic addition; hypervalent compounds; nitrogen heterocycles; synthetic methods; trifluoromethylation; SULFUR-TETRAFLUORIDE; FLUORINATION; DERIVATIVES; AMINES; ETHERS; SALTS; ACIDS;
D O I
10.1002/anie.201006021
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Acid-catalyzed electrophilic trifluoromethylation of nitriles in the presence of azoles leads to N-(trifluoromethyl)imine derivatives. The source of the trifluoromethyl group is a readily prepared and easy-to-handle hypervalent iodine(III) reagent (see scheme; HNTf2=bis(N- (trifluoromethanesulfonyl)imide). This Ritter-type reaction is astraightforward approach to N-(trifluoromethyl)imidoyl azoles, compounds otherwise very difficult to access. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:1059 / 1063
页数:5
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