tandem cyclization
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Synthesis of Seleno Oxindoles via Iodine-induced Radical Cyclization of N-arylacrylamides with Diorganyl Diselenides

Synthesis ◽  
2022 ◽  
Author(s):  
Hongmei Jiang ◽  
Haicheng Shen ◽  
Cehua Li ◽  
Zheng Jin ◽  
Yanxue Shang ◽  
...  
Keyword(s):  
Radical Cyclization ◽  
Cascade Cyclization ◽  
Diphenyl Disulfide ◽  
Radical Cascade ◽  
Tandem Cyclization

A mild radical cascade cyclization of N-arylacrylamides with diselenides for the preparation of oxindoles via iodine oxidation is disclosed, which provide an eco-friendly process for the construction of C–Se bond. 25 Examples of N-arylacrylamide substrates were investigated with excellent yields. Besides, the tandem cyclization of acrylamide with diphenyl disulfide was also applicable under the same condition.

Tandem cyclization/arylation of diaryliodoniums via in situ constructed benzoxazole as a directing group for atom-economical transformation

2022 ◽  
Author(s):  
Daqian Zhu ◽  
Hui Peng ◽  
Qian Liu ◽  
Yameng Sun ◽  
Bingling Luo ◽  
...  
Keyword(s):  
Metal System ◽  
Directing Group ◽  
Tandem Cyclization ◽  
Palladium Metal

Linear diaryliodoniums often undergo only single arylation and leave equivalent aryliodide as waste. Herein, we demonstrate that linear unsymmetrical diaryliodoniums could be tuned by dual nickel/palladium metal system to accomplish...

Lewis-Acid-Catalyzed Tandem Cyclization by Ring Expansion of Tertiary Cycloalkanols with Propargyl Alcohols

2021 ◽  
Author(s):  
Xue-Song Li ◽  
Xiangtao Kong ◽  
Cui-Tian Wang ◽  
Zhi-Jie Niu ◽  
Wan-Xu Wei ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Ring Expansion ◽  
Acid Catalyzed ◽  
Tandem Cyclization ◽  
Tertiary Cycloalkanols ◽  
Propargyl Alcohols

nThe Synthesis of Perfluoroalkylated Indolizines via Tandem Cyclization/Aromatization

2021 ◽  
pp. 109900
Author(s):  
Xiaoli Wang ◽  
Xiaoli Sun ◽  
Na Li ◽  
Jie Chen ◽  
Hui Zhang ◽  
...  
Keyword(s):  
Tandem Cyclization

Assembly of Furazan-Fused Quinolines via an Expeditious Metal-Free [2+2+1] Radical Tandem Cyclization Process

2021 ◽  
Author(s):  
Guobo Deng ◽  
Ronglin Zhong ◽  
Jianxin Song ◽  
Pui Ying Choy ◽  
Fuk Yee Kwong
Keyword(s):  
Metal Free ◽  
Cyclization Process ◽  
Tandem Cyclization
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