Synthesis of Highly Functionalized Tricyclic Chromenopyrazole Frameworks via Intramolecular Azomethine Imine 1,3-Dipolar Cycloaddition (IAIDC)

2018 ◽  
Vol 3 (24) ◽  
pp. 6960-6964 ◽  
Author(s):  
Manickam Bakthadoss ◽  
Vishal Agarwal
2019 ◽  
Author(s):  
Yang Shi ◽  
Gangqiang Wang ◽  
Zhiyu Chen ◽  
Minghu Wu ◽  
Jian Wang ◽  
...  

CuCO3 catalyzed 1, 3-dipolar cycloaddition of isatin N,N′‑cyclic azomethine imine has been developed.  Biologically active heterocyclic spiro[indoline-3,1'-pyrazolo[1,2-a]pyrazoles] were prepared as single regioisomers in good yields and functional group compatibility.


2020 ◽  
Vol 16 ◽  
pp. 2679-2686
Author(s):  
Alexander P Molchanov ◽  
Mariia M Efremova ◽  
Mariya A Kryukova ◽  
Mikhail A Kuznetsov

The first example of the cycloaddition of in situ-generated azomethine imine under microwave conditions is described. The reaction of 6-aryl-1,5-diazabicyclo[3.1.0]hexanes with 1,3-diphenylprop-2-en-1-ones proceeds regio- and stereoselectively giving mostly good yields of the corresponding perhydropyrazolopyrazoles. The products of the reaction undergo cycloreversion under the reaction conditions.


1980 ◽  
Vol 19 (11) ◽  
pp. 906-907 ◽  
Author(s):  
Judith L. Flippen-Anderson ◽  
Isabella Karle ◽  
Rolf Huisgen ◽  
Hans-Ulrich Reissig

2010 ◽  
Vol 46 (12) ◽  
pp. 2022 ◽  
Author(s):  
Dilip K. Maiti ◽  
Nirbhik Chatterjee ◽  
Palash Pandit ◽  
Sandip K. Hota

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