Synthesis of Benzo-Fused Cyclic Ketones via Metal-Free Ring Expansion of Cyclopropanols Enabled by Proton-Coupled Electron Transfer

2021 ◽  
Author(s):  
Tomohiro Kikuchi ◽  
Keiji Yamada ◽  
Takeshi Yasui ◽  
Yoshihiko Yamamoto
Keyword(s):  
Electron Transfer ◽  
Ring Expansion ◽  
Cyclic Ketones ◽  
Free Ring ◽  
Metal Free ◽  
Proton Coupled Electron Transfer

ChemInform Abstract: Metal-Free Ring-Expansion Reaction of Six-Membered Sulfonylimines with Diazomethanes: An Approach Toward Seven-Membered Enesulfonamides.

ChemInform ◽  
2016 ◽  
Vol 47 (23) ◽  
Author(s):  
An-Jie Xia ◽  
Tai-Ran Kang ◽  
Long He ◽  
Lian-Mei Chen ◽  
Wen-Ting Li ◽  
...  
Keyword(s):  
Ring Expansion ◽  
Free Ring ◽  
Metal Free ◽  
Ring Expansion Reaction

ChemInform Abstract: Metal-Free Ring Expansion of Indoles with Nitroalkenes: A Simple, Modular Approach to 3-Substituted 2-Quinolones.

ChemInform ◽  
2015 ◽  
Vol 46 (25) ◽  
pp. no-no
Author(s):  
Alexander V. Aksenov ◽  
Alexander N. Smirnov ◽  
Nicolai A. Aksenov ◽  
Inna V. Aksenova ◽  
Jonathon P. Matheny ◽  
...  
Keyword(s):  
Ring Expansion ◽  
Modular Approach ◽  
Free Ring ◽  
Metal Free

Metal-Free Ring-Expansion Reaction of Six-membered Sulfonylimines with Diazomethanes: An Approach toward Seven-Membered Enesulfonamides

2015 ◽  
Vol 128 (4) ◽  
pp. 1463-1466 ◽  
Author(s):  
An-Jie Xia ◽  
Tai-Ran Kang ◽  
Long He ◽  
Lian-Mei Chen ◽  
Wen-Ting Li ◽  
...  
Keyword(s):  
Ring Expansion ◽  
Free Ring ◽  
Metal Free ◽  
Ring Expansion Reaction

Transition-Metal-Free Ring Expansion Reactions of Indene-1,3-dione: Synthesis of Functionalized Benzoannulated Seven-Membered Ring Compounds

2018 ◽  
Vol 20 (7) ◽  
pp. 1744-1747 ◽  
Author(s):  
Qiyi Yao ◽  
Lingkai Kong ◽  
Mengdan Wang ◽  
Yang Yuan ◽  
Ruizhuo Sun ◽  
...  
Keyword(s):  
Transition Metal ◽  
Ring Expansion ◽  
Membered Ring ◽  
Free Ring ◽  
Metal Free ◽  
Ring Compounds

Metal-Free Ring-Expansion Reaction of Six-membered Sulfonylimines with Diazomethanes: An Approach toward Seven-Membered Enesulfonamides

2015 ◽  
Vol 55 (4) ◽  
pp. 1441-1444 ◽  
Author(s):  
An-Jie Xia ◽  
Tai-Ran Kang ◽  
Long He ◽  
Lian-Mei Chen ◽  
Wen-Ting Li ◽  
...  
Keyword(s):  
Ring Expansion ◽  
Free Ring ◽  
Metal Free ◽  
Ring Expansion Reaction

Metal-free ring expansion of indoles with nitroalkenes: a simple, modular approach to 3-substituted 2-quinolones

RSC Advances ◽  
2015 ◽  
Vol 5 (12) ◽  
pp. 8647-8656 ◽  
Author(s):  
Alexander V. Aksenov ◽  
Alexander N. Smirnov ◽  
Nicolai A. Aksenov ◽  
Inna V. Aksenova ◽  
Jonathon P. Matheny ◽  
...  
Keyword(s):  
Polyphosphoric Acid ◽  
Ring Expansion ◽  
Modular Approach ◽  
Free Ring ◽  
Metal Free

3-Substituted 2-quinolones are obtained via a novel metal-free transannulation reaction of 2-nitroolefins with 2-substituted indoles in polyphosphoric acid.

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