1594796-33-4Relevant academic research and scientific papers
The controllable C2 arylation and C3 diazenylation of indoles with aryltriazenes under ambient conditions
Liu, Yonghong,Ma, Xia,Wu, Gengxin,Liu, Ziran,Yang, Xiang,Wang, Bin,Liu, Chenjiang,Zhang, Yonghong,Huang, Yan
supporting information, p. 9255 - 9259 (2019/06/17)
An efficient and regio-divergent method for both the C2 arylation and C3 diazenylation of C2,C3-unsubstituted indoles with aryltriazenes was developed. At room temperature, both reactions were carried out with HPF6/ionic liquids (ILs) as the promoter. The C2 arylation and C3 diazenylation activated by HPF6/ILs show remarkable reactivity, which results in corresponding products with yields of up to 99%. Notably, the practicality of the protocol was further demonstrated via gram-scale operations, late-stage modification and the reusability of the ILs.
Exploration of Biaryl Carboxylic Acids as Proton Shuttles for the Selective Functionalization of Indole C-H Bonds
Pi, Jing-Jing,Lu, Xiao-Yu,Liu, Jing-Hui,Lu, Xi,Xiao, Bin,Fu, Yao,Guimond, Nicolas
, p. 5791 - 5800 (2018/05/14)
A survey of diversely substituted 2-arylbenzoic acids were synthesized and tested for use as proton shuttle in the direct arylation of indoles with bromobenzenes. It was found that 3-ethoxy-2-phenylbenzoic acid gives superior yield and selectivity for this class of substrates.
Palladium-catalyzed direct C2 arylation of N-substituted indoles with 1-aryltriazenes
Liu, Can,Miao, Tao,Zhang, Lei,Li, Pinhua,Zhang, Yicheng,Wang, Lei
, p. 2584 - 2589 (2014/10/15)
A novel and efficient palladium-catalyzed C2 arylation of N-substituted indoles with 1-aryltriazenes for the synthesis of 2-arylindoles was developed. In the presence of BF3?OEt2 and palladium(II) acetate (Pd(OAc)2), N-substituted indoles reacted with 1-aryltriazenes in N,N-dimethylacetamide (DMAC) to afford the corresponding aryl-indole-type products in good to excellent yields.
