17709-95-4Relevant articles and documents
A facile access to thieno[2,3-b]indoles via sulfur-mediated decarboxylative cyclization of α, β-unsaturated carboxylic acids with indoles
Zhang, Hao-Lin,Wen, Fei,Sheng, Wen-Bing,Yin, Peng,Zhang, Chun-Tao,Peng, Cai-Yun,Peng, Dong-Ming,Liao, Duan-Fang,Fu, Rong-Geng
, p. 80 - 83 (2019)
An efficient synthesis of thieno[2,3-b]indoles via a one-pot three-component reaction was well established. By using inexpensive and commercial available indoles and α, β-unsaturated carboxylic acids in the presence of elemental sulfur, various functional groups were achieved in moderate to good yields.
Elemental Sulfur-Promoted Benzoxazole/Benzothiazole Formation Using a C=C Double Bond as a One-Carbon Donator
Chen, Xuecheng,Han, Shiqing,Hu, Liang,Liu, Yafei,Luo, Yue,Pan, Bin,Peng, Yalan,Zhang, Jun,Zhang, Yurong
, p. 14485 - 14492 (2021/11/12)
An efficient method to assemble diverse benzoxazoles/benzothiazoles in good yields was developed via oxidative cyclization with 2-aminothiophenols or 2-iodoanilines as raw materials. In this protocol, elemental sulfur was used as the effective oxidant and C atoms on the C=C double bond were introduced as a one-carbon donator.
Three-Component Thieno[2,3-b]indole Synthesis from Indoles, Alkenes or Alkynes and Sulfur Powder under Metal-Free Conditions
Li, Bin,Ni, Penghui,Huang, Huawen,Xiao, Fuhong,Deng, Guo-Jun
supporting information, p. 4300 - 4304 (2017/10/24)
A Bronsted acid promoted three-component synthesis of substituted thieno[2,3-b]indole has been developed starting from indoles, alkenes or alkynes, and sulfur powder. N,N-Dimethylformamide plays an important role to convert the starting materials into the fused products. Various functional groups attached to substrates were well tolerated to afford the corresponding products in moderate to good yields under very simple reaction conditions. (Figure presented.).
