Facile Synthesis of Pyrano[2,3‐c]pyrazol‐6‐one Derivatives Under Microwave Irradiation in Solvent‐Free Conditions

2006 ◽  
Vol 36 (1) ◽  
pp. 51-57 ◽  
Author(s):  
Mohammad M. Mojtahedi ◽  
Mohammad R. Jalali ◽  
Mohammad Bolourtchian
ChemInform ◽  
2006 ◽  
Vol 37 (22) ◽  
Author(s):  
Mohammad M. Mojtahedi ◽  
Mohammad R. Jalali ◽  
Mohammad Bolourtchian

2006 ◽  
Vol 27 (2) ◽  
pp. 169-174 ◽  
Author(s):  
Jian-Ping Li ◽  
Peng-Zhi Zheng ◽  
Rui-Jie Liu ◽  
Jun-Ge Zhu ◽  
Gui-Rong Qu

1999 ◽  
Vol 23 (9) ◽  
pp. 574-575
Author(s):  
Firouz Matloubi Moghaddam ◽  
Mohammad Ghaffarzadeh ◽  
Seyed Hossein Abdi-Oskoui

An AICl3–ZnCl2 mixture supported on silica gel is found to be an efficient medium for the Fries rearrangement of acyloxybenzene or naphthalene derivatives in solvent-free conditions under microwave irradiation.


RSC Advances ◽  
2021 ◽  
Vol 11 (45) ◽  
pp. 28061-28071
Author(s):  
Kesatebrhan Haile Asressu ◽  
Chieh-Kai Chan ◽  
Cheng-Chung Wang

Trisubstituted imidazoles are synthesized efficiently from the readily available 1,2-diketones and aldehydes using hexamethyldisilazane as a new and stable nitrogen source under TMSOTf-catalysis system, microwave heating and solvent-free conditions.


2005 ◽  
Vol 2005 (1) ◽  
pp. 27-28 ◽  
Author(s):  
Jaime Charris ◽  
Arthur Barazarte ◽  
José Domínguez ◽  
Neira Gamboa

A rapid method for the preparation of N-aryl-2-methylthio-4-oxo-1,4-dihydro quinoline-3-carbonitriles (2a–e) and N-aryl-3-methylthio-4H-1,4-benzothiazine-2-carbonitrile 1,1-dioxides (2f–o) is reported. The cyclization is accelerated by microwave irradiation under solvent free conditions in the presence of K2CO3.


2020 ◽  
Vol 18 (22) ◽  
pp. 4231-4237
Author(s):  
Indrani Banerjee ◽  
Shweta Sagar ◽  
Tarun K. Panda

An efficient one-step methodology for the facile synthesis of N-arylamidines from organic nitriles and amines by using calcium bis(hexamethyldisilazide) as a competent catalyst under solvent-free conditions is reported.


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