Three‐Component Thieno[2,3‐b]indole Synthesis from Indoles, Alkenes or Alkynes and Sulfur Powder under Metal‐Free Conditions

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 at...

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Veröffentlicht in:Advanced synthesis & catalysis 2017-12, Vol.359 (24), p.4300-4304
Hauptverfasser: Li, Bin, Ni, Penghui, Huang, Huawen, Xiao, Fuhong, Deng, Guo‐Jun
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container_issue 24
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container_title Advanced synthesis & catalysis
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creator Li, Bin
Ni, Penghui
Huang, Huawen
Xiao, Fuhong
Deng, Guo‐Jun
description 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.
doi_str_mv 10.1002/adsc.201701106
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source Wiley Online Library Journals Frontfile Complete
subjects Alkenes
Alkynes
C−H functionalization
Functional groups
Indoles
Metal-free
Substrates
Sulfur
Sulfur powder
Synthesis
Thieno[2,3-b]indole
Three-component reaction
title Three‐Component Thieno[2,3‐b]indole Synthesis from Indoles, Alkenes or Alkynes and Sulfur Powder under Metal‐Free Conditions
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