scholarly journals Metal-free synthesis of 1,N6-ethenoadenines from N6-propargyl-adenines via NIS mediated radical cascade reaction

RSC Advances ◽  
2019 ◽  
Vol 9 (66) ◽  
pp. 38897-38901
Author(s):  
Ruchun Yang ◽  
Si Deng ◽  
Xiang-you Dong ◽  
Xianrong Song ◽  
Hu Cai ◽  
...  
Keyword(s):  
Cascade Reaction ◽  
Metal Free ◽  
Efficient Approach ◽  
Cascade Cyclization ◽  
Radical Cascade

An efficient approach for the construction of 1,N6-ethenoadenines is developed through the metal-free mediated radical cascade cyclization of conveniently prepared N6-propargyl-adenines.

A metal-free radical cascade reaction of phosphine oxides with 2-aryloxy phenylacetylenes to assemble diphosphonyl xanthene derivatives

2021 ◽  
Author(s):  
Tao Fan ◽  
Yan Liu ◽  
Caina Jiang ◽  
Yanli Xu ◽  
Yan-Yan Chen
Keyword(s):  
Free Radical ◽  
Transition Metal ◽  
Cascade Reaction ◽  
Phosphine Oxides ◽  
Metal Free ◽  
Mild Conditions ◽  
Xanthene Derivatives ◽  
Reaction Proceeds ◽  
Radical Cascade

A radical cascade reaction of 2-aryloxy phenylacetylene with phosphine oxides promoted by K2S2O8 was developed, provided diphosphonyl xanthenes as products. This reaction proceeds under transition metal-free and mild conditions with...

Catalytic Radical Cascade Cyclization of Alkene-Tethered Enones to Fused Bicyclic Cyclopropanols

2021 ◽  
Author(s):  
Ying Xie ◽  
Wei Huang ◽  
Song Qin ◽  
Shaomin Fu ◽  
Bo Liu
Keyword(s):  
Hydrogen Atom ◽  
Cascade Reaction ◽  
Hydrogen Atom Transfer ◽  
Atom Transfer ◽  
Trimethyl Borate ◽  
Cascade Cyclization ◽  
Radical Cascade ◽  
Privileged Scaffolds

An unprecedented hydrogen atom transfer-triggered intramolecular cascade reaction between alkene and enone is developed, using Fe(acac)3, PhSiH2(Oi-Pr) and trimethyl borate, to efficiently construct cis-fused bicyclic cyclopropanols, privileged scaffolds often found...

A radical cyclization cascade of 2-alkynylbenzonitriles with sodium arylsulfinates

2018 ◽  
Vol 16 (42) ◽  
pp. 7959-7963 ◽  
Author(s):  
Bang Zhou ◽  
Wenqi Chen ◽  
Yuzhong Yang ◽  
Yuan Yang ◽  
Guobo Deng ◽  
...  
Keyword(s):  
Radical Cyclization ◽  
Efficient Approach ◽  
Cascade Cyclization ◽  
Radical Cascade

We report an efficient approach to synthesize sulfonated indenones via a radical cascade cyclization of 2-alkynylbenzonitriles with sodium arylsulfinates.

Metal-free sulfonyl radical-initiated cascade cyclization to access sulfonated indolo[1,2-a]quinolines

2019 ◽  
Vol 55 (84) ◽  
pp. 12615-12618 ◽  
Author(s):  
Kai Sun ◽  
Xiao-Lan Chen ◽  
Yin-Li Zhang ◽  
Kai Li ◽  
Xian-Qiang Huang ◽  
...  
Keyword(s):  
Cascade Reaction ◽  
Quinoline Derivatives ◽  
Metal Free ◽  
Cascade Cyclization

A metal-free cascade reaction was developed for the synthesis of indolo[1,2-a]quinoline derivatives from arylsulfonyl hydrazides and 1-(2-(arylethynyl)phenyl)indoles in the presence of TBAI/TBHP.

Metal-free and efficient approach to 4-thiocyanated 2H-chromenes via TFA-mediated cascade cyclization of 2-propynolphenols

2019 ◽  
Vol 60 (18) ◽  
pp. 1248-1253 ◽  
Author(s):  
Tao Yang ◽  
Xian-Rong Song ◽  
Ren Li ◽  
Fengyan Jin ◽  
Yuxing Zhang ◽  
...  
Keyword(s):  
Metal Free ◽  
Efficient Approach ◽  
Cascade Cyclization

Aerobic radical-cascade cycloaddition of isocyanides, selenium and imidamides: facile access to 1,2,4-selenadiazoles under metal-free conditions

2017 ◽  
Vol 19 (7) ◽  
pp. 1613-1618 ◽  
Author(s):  
Yi Fang ◽  
Zheng-Lin Zhu ◽  
Pei Xu ◽  
Shun-Yi Wang ◽  
Shun-Jun Ji
Keyword(s):  
Metal Free ◽  
Cascade Cyclization ◽  
Radical Cascade ◽  
Novel Method

A facile and novel method for the synthesis of functionalized 1,2,4-selenadiazoles through aerobic radical-cascade cyclization of isocyanides, selenium and imidamides is established.

Synthesis of 3-sulfonylquinolines by visible-light promoted metal-free cascade cycloaddition involving N-propargylanilines and sodium sulfinates

2020 ◽  
Vol 44 (8) ◽  
pp. 3189-3193 ◽  
Author(s):  
Jing-Mei Yuan ◽  
Jinnan Li ◽  
Heyang Zhou ◽  
Jiali Xu ◽  
Fengting Zhu ◽  
...  
Keyword(s):  
Visible Light ◽  
Cascade Reaction ◽  
Metal Free ◽  
Radical Cascade

A visible-light promoted radical cascade reaction of N-propargylanilines with sodium sulfinates as sulfonyl radical precursors was developed under metal-free conditions.

Facile synthesis of carbamoylated benzimidazo[2,1-a]isoquinolin-6(5H)-ones via radical cascade cyclization under metal-free conditions

2021 ◽  
Author(s):  
Qi Liu ◽  
Lei Wang ◽  
Jie Liu ◽  
Shuchen Ruan ◽  
Pinhua Li
Keyword(s):  
Efficient Synthesis ◽  
Facile Synthesis ◽  
Metal Free ◽  
Cascade Cyclization ◽  
Highly Efficient ◽  
Radical Cascade

A highly efficient synthesis of carbamoylated benzimidazo[2,1-a]isoquinolin-6(5H)-ones using 2-arylbenzoimidazoles and oxamic acids was developed. This strategy tolerated various substrates on the starting materials to generate the corresponding products in good...

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