scholarly journals Microwave‐Assisted 1,3‐Dipolar Cycloaddition of Azomethine Ylides to [60]Fullerene: Thermodynamic Control of Bis‐Addition with Ionic Liquids Additives

2021 ◽  
Author(s):  
Estefanía M. Martinis ◽  
Alejandro Montellano ◽  
Andrea Sartorel ◽  
Mauro Carraro ◽  
Maurizio Prato ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Azomethine Ylides ◽  
Dipolar Cycloaddition ◽  
Thermodynamic Control ◽  
Microwave Assisted

Reactions of 4-Pyrones with Azomethine Ylides as a Chemo­selective Method for the Construction of Multisubstituted Pyrano[2,3-c]pyrrolidines

Synthesis ◽  
2021 ◽  
Author(s):  
Dmitrii L. Obydennov ◽  
Vyacheslav D. Steben’kov ◽  
Konstantin L. Obydennov ◽  
Sergey A. Usachev ◽  
Vladimir S. Moshkin ◽  
...  
Keyword(s):  
Double Bond ◽  
Ring Opening ◽  
Azomethine Ylides ◽  
Azomethine Ylide ◽  
Dipolar Cycloaddition ◽  
Computational Studies ◽  
Carbon Double Bond ◽  
Reactivity Indexes ◽  
Reaction Proceeds

Abstract4-Pyrones bearing electron-donating and electron-withdrawing groups react with nonstabilized azomethine ylides to form pyrano[2,3-c]pyrrolidines in moderate to good yields. The reaction proceeds chemoselectively as a 1,3-dipolar cycloaddition of the azomethine ylide at the carbon–carbon double bond of the pyrone activated by the electron-withdrawing substituent. The reactivity of 4-pyrones toward azomethine ylides was rationalized by computational studies with the use of reactivity indexes. The pyrano[2,3-c]pyrrolidine moiety could be modified, for example by a ring-opening transformation under the action of hydrazine to provide pyrazolyl-substituted pyrrolidines.

ChemInform Abstract: Oligopyrrole Synthesis by 1,3-Dipolar Cycloaddition of Azomethine Ylides with Bissulfonyl Ethylenes.

ChemInform ◽  
2008 ◽  
Vol 39 (15) ◽  
Author(s):  
Ana Lopez-Perez ◽  
Rocio Robles-Machin ◽  
Javier Adrio ◽  
Juan Carlos Carretero
Keyword(s):  
Azomethine Ylides ◽  
Dipolar Cycloaddition

scholarly journals Stereoselective Ag-Catalyzed 1,3-Dipolar Cycloaddition of Activated Trifluoromethyl-Substituted Azomethine Ylides

2016 ◽  
Vol 22 (14) ◽  
pp. 4952-4959 ◽  
Author(s):  
Alberto Ponce ◽  
Inés Alonso ◽  
Javier Adrio ◽  
Juan C. Carretero
Keyword(s):  
Azomethine Ylides ◽  
Dipolar Cycloaddition

Ligand-controlled stereodivergent 1,3-dipolar cycloaddition of azomethine ylides with 3-methyl-4-nitro-5-styrylisoxazoles

2016 ◽  
Vol 52 (60) ◽  
pp. 9458-9461 ◽  
Author(s):  
Kang Liu ◽  
Yong Xiong ◽  
Zuo-Fei Wang ◽  
Hai-Yan Tao ◽  
Chun-Jiang Wang
Keyword(s):  
Azomethine Ylides ◽  
Dipolar Cycloaddition

An unprecedented Ag(i)-catalyzed ligand-controlled stereodivergent 1,3-dipolar cycloaddition of azomethine ylides with 3-methyl-4-nitro-5-styrylisoxazoles has been developed to afford heterocycles bearing both methylisoxazole and pyrrolidine moieties.

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