The Synthesis of Spirooxindole Pyrrolidines via an Asymmetric Azomethine Ylide [1,3]-Dipolar Cycloaddition Reaction.

ChemInform ◽  
2003 ◽  
Vol 34 (12) ◽  
Author(s):  
Paul R. Sebahar ◽  
Robert M. Williams
Keyword(s):  
Cycloaddition Reaction ◽  
Azomethine Ylide ◽  
Dipolar Cycloaddition

Stepwise π-extension of meso-alkylidenyl porphyrins through sequential 1,3-dipolar cycloaddition and redox reactions

2014 ◽  
Vol 50 (66) ◽  
pp. 9277-9280 ◽  
Author(s):  
Dowoo Park ◽  
Seung Doo Jeong ◽  
Masatoshi Ishida ◽  
Chang-Hee Lee
Keyword(s):  
Redox Reactions ◽  
Cycloaddition Reaction ◽  
Azomethine Ylide ◽  
Dipolar Cycloaddition ◽  
High Yields

Novel pi-extended,meso-malonylidene porphyrins have been synthesized in high yields by 1,3-dipolar cycloaddition reaction with the azomethine ylide.

scholarly journals Diastereoselective Synthesis of Spiro[Pyrrolo[2,1-B][1,3] Benzothiazole-3,5′-[1,3]Thiazolo[3,2-B][1,2,4]Triazol]-6′-Ones via Cycloaddition Reaction of Benzothiazolium Salts

2018 ◽  
Vol 42 (7) ◽  
pp. 371-373 ◽  
Author(s):  
Qing Zeng ◽  
Demin Ren ◽  
Yulin Huang ◽  
Xinliang Fu ◽  
Xiaofang Li
Keyword(s):  
Cycloaddition Reaction ◽  
Crystallographic Analysis ◽  
Azomethine Ylide ◽  
Dipolar Cycloaddition ◽  
Diastereoselective Synthesis ◽  
X Ray

The 1,3-dipolar cycloaddition reaction of (Z)-5-arylidene[1,3]thiazolo[3,2-b][1,2,4]triazol-6(5H)-one and azomethine ylide, which was generated in situ by the reaction of N-4-methoxyphenacylbenzothiazolium bromides and triethylamine, afforded novel 2-(aryl)-1-(4-methoxybenzoyl)-1,2-dihydrospiro[pyrrolo[2,1-b][1,3]benzothiazole-3,5′-[1,3]thiazolo[3,2-b][1,2,4]triazol]-6′-ones in moderate yields. The structures of all the products were characterised thoroughly by NMR, IR and HRMS spectroscopy together with X-ray crystallographic analysis.

scholarly journals Heterogeneous graphene oxide as recyclable catalyst for azomethine ylide mediated 1,3 dipolar cycloaddition reaction in aqueous medium

RSC Advances ◽  
2018 ◽  
Vol 8 (62) ◽  
pp. 35587-35593 ◽  
Author(s):  
Marri Sameer Reddy ◽  
Nandigama Satish Kumar ◽  
L. Raju Chowhan
Keyword(s):  
Graphene Oxide ◽  
Aqueous Medium ◽  
Cycloaddition Reaction ◽  
Recyclable Catalyst ◽  
Azomethine Ylide ◽  
Dipolar Cycloaddition ◽  
Diastereoselective Synthesis ◽  
Good Substrate

Graphene oxide (GO) catalyzed regio and diastereoselective synthesis of spiro-indenoquinoxaline pyrrolizidines and spiro-oxindoles pyrrolizidines is described with good substrate scope and yield using azomethine ylide under aq. EtOH condition at RT.

scholarly journals Synthesis of Dispiro[Indeno[1,2-b]Quinoxaline-11,3′-Pyrrolizine-2′,2″-[1,3] Thiazolo[3,2-a]Pyrimidine Via Cycloaddition Reactions

2018 ◽  
Vol 42 (9) ◽  
pp. 453-455 ◽  
Author(s):  
Demin Ren ◽  
Xiaolian Hu ◽  
Yulin Huang ◽  
Xiaofang Li
Keyword(s):  
Cycloaddition Reaction ◽  
Crystallographic Analysis ◽  
Azomethine Ylide ◽  
Dipolar Cycloaddition ◽  
Cycloaddition Reactions ◽  
X Ray

The 1,3-dipolar cycloaddition reaction of ethyl 5-aryl-2-(2-methoxy-2-oxoethylidene)-7-methyl-3-oxo-2,3-dihydro-5 H-[1,3]thiazolo[3,2- a] pyrimidine-6-carboxylate and azomethine ylide, which was generated in situ by the reaction of 11 H-indeno[1,2- b]quinoxalin-11-one and L-proline, afforded novel 6″ethyl 1′-methyl 5″aryl-7″methyl-3″oxo-5’,6’,7’,7a′-tetrahydro-1' H,3″ H,5″ H-dispiro[indeno[1,2- b]quinoxaline-11, 3 ‘-pyrrolizine-2’,2″-[1,3]thiazolo[3,2- a]pyrimidine-1’,6″-dicarboxylates in good yields. The structures of all the products were characterised thoroughly by NMR, IR and HRMS together with X-ray crystallographic analysis.

1,3-Dipolar cycloaddition reactions of phthalic anhydrides with an azomethine ylide

2015 ◽  
Vol 2 (6) ◽  
pp. 705-712 ◽  
Author(s):  
Hugo Santos ◽  
Amy Distiller ◽  
Asha M. D'Souza ◽  
Quentin Arnoux ◽  
Jonathan M. White ◽  
...  
Keyword(s):  
Ring Opening ◽  
Cycloaddition Reaction ◽  
Azomethine Ylide ◽  
Dipolar Cycloaddition ◽  
Cycloaddition Reactions ◽  
Ring Opening Reaction ◽  
Phthalic Anhydrides

A series of phthalic anhydrides underwent a 1,3-dipolar cycloaddition reaction with N-benzylazomethine ylide to produce unstable spiro(isobenzofuran-1,5′-oxazolidin)-3-ones, which underwent a subsequent reductive ring-opening reaction to afford 1(3H)-isobenzofuranones.

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