Selective Insertion of Alkynes into C–C σ Bonds of Indolin-2-ones: Transition-Metal-Free Ring Expansion Reactions to Seven-Membered-Ring Benzolactams or Chromone Derivatives

2019 ◽  
Vol 22 (1) ◽  
pp. 155-159 ◽  
Author(s):  
Mengdan Wang ◽  
Yajie Yang ◽  
Bo Song ◽  
Liqiang Yin ◽  
Shuhui Yan ◽  
...  
Keyword(s):  
Transition Metal ◽  
Ring Expansion ◽  
Membered Ring ◽  
Free Ring ◽  
Chromone Derivatives ◽  
Metal Free

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

scholarly journals Phosphetes via transition metal free ring closure – taking the proper turn at a thermodynamic crossing

2021 ◽  
Author(s):  
Rudolf Pietschnig ◽  
Fabian Roesler ◽  
Máté Kovács ◽  
Clemens Bruhn ◽  
Zsolt Kelemen
Keyword(s):  
Transition Metal ◽  
Ring Closure ◽  
Free Ring ◽  
Metal Free

scholarly journals Phosphetes via Transition Metal Free Ring Closure – Taking the Proper Turn at a Thermodynamic Crossing

2021 ◽  
Author(s):  
Fabian Roesler ◽  
Máté Kovács ◽  
Clemens Bruhn ◽  
Zsolt Kelemen ◽  
Rudolf Pietschnig
Keyword(s):  
Transition Metal ◽  
Ring Closure ◽  
Free Ring ◽  
Metal Free

scholarly journals Synthesis of Trifluoromethylated Cycloheptatrienes from N-Tosylhydrazones: Transition-Metal-Free Büchner Ring Expansion

Synlett ◽  
2014 ◽  
Vol 26 (01) ◽  
pp. 59-62 ◽  
Author(s):  
Xi Wang ◽  
Jianbo Wang ◽  
Zhikun Zhang ◽  
Jiajie Feng ◽  
Yan Xu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Ring Expansion ◽  
Metal Free

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

Transition-Metal-Free Ring-Opening Silylation of Indoles and Benzofurans with (Diphenyl-tert -butylsilyl)lithium

2017 ◽  
Vol 56 (44) ◽  
pp. 13872-13875 ◽  
Author(s):  
Pan Xu ◽  
Ernst-Ulrich Würthwein ◽  
Constantin G. Daniliuc ◽  
Armido Studer
Keyword(s):  
Transition Metal ◽  
Ring Opening ◽  
Free Ring ◽  
Metal Free
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