Selective trifluoromethylation and alkynylation of tetrahydroisoquinolines using visible light irradiation by Rose Bengal

被引:98
作者
Fu, Weijun [1 ]
Guo, Wenbo [1 ]
Zou, Guanglong [2 ]
Xu, Chen [1 ]
机构
[1] Luoyang Normal Univ, Coll Chem & Chem Engn, Luoyang 471022, Peoples R China
[2] Guizhou Univ Nationalities, Sch Chem & Environm Sci, Guiyang 550025, Peoples R China
基金
中国国家自然科学基金;
关键词
Photooxidation; Visible light; Trifluoromethylation; Alkynylation; Trimethyl(trifluoromethyl)silane; Tetrahydroisoquinoline; SP(3) C-H; CATALYZED OXIDATIVE CYANATION; PHENYLETHANOLAMINE N-METHYLTRANSFERASE; PHOTOREDOX CATALYSIS; TERTIARY-AMINES; BOND ACTIVATION; REDUCTIVE AMINATION; HYDROGEN-PEROXIDE; MOLECULAR-OXYGEN; NITROGEN;
D O I
10.1016/j.jfluchem.2012.05.009
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A convenient and efficient method for oxidative coupling of tetrahydroisoquinoline derivatives with trimethyl(trifluoromethyl)silane and terminal alkynes to 1-trifluoromethylated or 1-alkynylated tetrahydroisoquinolines via C-H activation was developed using visible light irradiation. The protocol uses Rose Bengal as the catalyst, air as terminal oxidant, and the trifluoromethylation or alkynylation was selectively performed at the alpha-position of nitrogen under extremely mild conditions. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:88 / 94
页数:7
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