Synthesis of cyclohexylidenehydrazine-fused polycyclics via a photocatalytic radical cascade reaction of 2-ethynylaldehyde hydrazones

2017 ◽  
Vol 53 (12) ◽  
pp. 2036-2039 ◽  
Author(s):  
Nengneng Zhou ◽  
Jing Liu ◽  
Zhongfei Yan ◽  
Zhongkai Wu ◽  
Honglin Zhang ◽  
...  
Keyword(s):  
Visible Light ◽  
Cascade Reaction ◽  
Polycyclic Compounds ◽  
Radical Cascade

A general and efficient visible-light photoredox-catalyzed cascade annulation of 2-ethynylaldehyde hydrazones with α-bromo-carbonyls for the synthesis of various cyclohexylidenehydrazine-fused polycyclic compounds is described.

Visible-light-mediated radical cascade reaction: synthesis of 3-bromocoumarins from alkynoates

2017 ◽  
Vol 15 (41) ◽  
pp. 8820-8826 ◽  
Author(s):  
Shangbiao Feng ◽  
Jinlai Li ◽  
Zaimin Liu ◽  
Haiyu Sun ◽  
Hongliang Shi ◽  
...  
Keyword(s):  
Visible Light ◽  
Cascade Reaction ◽  
Radical Addition ◽  
Reaction Synthesis ◽  
Radical Cascade

The development of a visible-light mediated bromo radical addition/spirocyclization/ester migration cascade reaction to generate 3-bromocoumarins from alkynoates is reported.

scholarly journals Asymmetric Total Synthesis of (+)-21-epi-Eburnamonine Via a Photocatalytic Radical Cascade Reaction

2020 ◽  
Author(s):  
Yuan Huang ◽  
Fanglin Xue ◽  
Hengmao Liu ◽  
Fei Xue ◽  
Xiao-Yu Liu ◽  
...  
Keyword(s):  
Total Synthesis ◽  
Visible Light ◽  
Claisen Rearrangement ◽  
Cascade Reaction ◽  
Ring System ◽  
Asymmetric Total Synthesis ◽  
Radical Cascade ◽  
Key Features ◽  
Quaternary Stereocenter ◽  
Visible Light Photocatalytic

Abstract An asymmetric total synthesis of (+)-21-epi-eburnamonine has been achieved. Key features of the synthesis include a visible-light photocatalytic intra-/intramolecular radical cascade reaction to assemble the tetracyclic ABCD ring system, and a highly diastereoselective Johnson-Claisen rearrangement to establish the C20 all-carbon quaternary stereocenter. Graphic Abstract

Photoinduced efficient synthesis of cyanoalkylsulfonylated oxindoles via sulfur dioxide insertion

2021 ◽  
Author(s):  
Fan Teng ◽  
Juan Du ◽  
Changping Xun ◽  
Mengxue Zhu ◽  
Ziqin Lu ◽  
...  
Keyword(s):  
Sulfur Dioxide ◽  
Visible Light ◽  
Cascade Reaction ◽  
Efficient Synthesis ◽  
Radical Cascade

A visible-light-promoted radical cascade reaction of N-arylacrylamide and cyclobutanone oxime esters with sulfur dioxide insertion is established.

scholarly journals Synthesis of 3-CF2-Containing Chromones via a Visible-Light-Induced Radical Cascade Reaction of o-Hydroxyaryl Enaminones

ACS Omega ◽  
2017 ◽  
Vol 2 (7) ◽  
pp. 3168-3174 ◽  
Author(s):  
Huang Gao ◽  
Bei Hu ◽  
Wuheng Dong ◽  
Xiaoshuang Gao ◽  
Lili Jiang ◽  
...  
Keyword(s):  
Visible Light ◽  
Cascade Reaction ◽  
Radical Cascade

Visible-light-promoted acyl radical cascade reaction for accessing acylated isoquinoline-1,3(2H,4H)-dione derivatives

2020 ◽  
Vol 18 (10) ◽  
pp. 1940-1948 ◽  
Author(s):  
Yingpeng Su ◽  
Rong Zhang ◽  
Wenxuan Xue ◽  
Xuan Liu ◽  
Yanan Zhao ◽  
...  
Keyword(s):  
Visible Light ◽  
Cascade Reaction ◽  
Acyl Radical ◽  
Keto Acids ◽  
Radical Cascade

A visible-light-promoted radical acylation/cyclization cascade reaction of N-methacryloylbenzamides with α-keto acids was developed to construct acylated isoquinoline-dione derivatives.

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.

Synthesis of functionalized pyrroloindolinesviaa visible-light-induced radical cascade reaction: rapid synthesis of (±)-flustraminol B

2018 ◽  
Vol 54 (54) ◽  
pp. 7443-7446 ◽  
Author(s):  
Kui Wu ◽  
Yuliu Du ◽  
Zheng Wei ◽  
Ting Wang
Keyword(s):  
Visible Light ◽  
Cascade Reaction ◽  
Rapid Synthesis ◽  
Reaction Condition ◽  
Radical Cascade

We report a visible-light-induced synthesis of functionalized pyrroloindolinesviaa radical cascade reaction,highlighting a mild nature of the reaction condition.

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...

Highly Cumulated Radical Cascade Reaction of aza-1,6-Enyenes: Stereoselective Synthesis of exo -Methylene Piperidines

2020 ◽  
Vol 2020 (11) ◽  
pp. 1700-1707
Author(s):  
Akio Kamimura ◽  
Tomoyuki Itaya ◽  
Tatsuro Yoshinaga ◽  
Ryo Nozawa ◽  
Takuji Kawamoto ◽  
...  
Keyword(s):  
Stereoselective Synthesis ◽  
Cascade Reaction ◽  
Radical Cascade
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