Phosphinite ionic liquid (IL-OPPh2) as a recyclable reagent for the efficient synthesis of coumarins under microwave irradiation conditions

2011 ◽  
Vol 8 (3) ◽  
pp. 862-871 ◽  
Author(s):  
H. Valizadeh ◽  
H. Gholipour ◽  
M. Mahmoudian
2006 ◽  
Vol 10 (11) ◽  
pp. 1253-1258 ◽  
Author(s):  
Ahmad Shaabani ◽  
Ali Maleki

Metal-free phthalocyanine derivatives have been synthesized in very short times with high yields in the presence of 1,1,3,3-tetramethylguanidinium trifluoroacetate (TMGT) as an ionic liquid or tetrabutylammonium bromide (TBAB) as a phase transfer reagent under both classical heating conditions and using microwave irradiation. The best results were obtained with ionic liquid. Both the ionic liquid and phase transfer reagent can be recycled for subsequent reactions and reused without appreciable loss of efficiency.


RSC Advances ◽  
2016 ◽  
Vol 6 (89) ◽  
pp. 85877-85884 ◽  
Author(s):  
Roghayeh Sharifi Aliabadi ◽  
Nosrat O. Mahmoodi

Green and speedy synthesis of bispyranopyrazoles. [bmim][OH−] ionic liquid. Microwave irradiation. Antioxidant activity compared to vitamin E and C.


2019 ◽  
Vol 16 (7) ◽  
pp. 550-555
Author(s):  
Dinesh K. Jangid ◽  
Keshav L. Ameta ◽  
Surbhi Dhadda ◽  
Anjali Guleria ◽  
Prakash G. Goswami ◽  
...  

Ionic Liquid assisted efficient synthesis of some 2-aminobenzenethiols has been reported using three different Ionic Liquids (ILs) namely methylimidazolium tetrafluoroborate [MIM]+[BF4]−, methylimidazolium chloride [MIM]+[Cl]− and methylimidazolium nitrate [MIM]+[NO3]−. A comparative study has been carried out for the synthesis of target molecules in the presence and absence of IL, leading to conclusion that maximum yield has been observed with [MIM]+[BF4]−.


2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Dalila Meziane ◽  
Abdelhamid Elias ◽  
Erwann Guénin

The aim of this investigation was to develop an efficient, rapid, and selective method for the synthesis ofω-alkylenediphosphoric acids (HO)2(O)P-O-CH2n-O-P(O)(OH)2from reaction of several diols with phosphorus oxychloride. The reaction was investigated using three methodologies: (i) presence of a base, (ii) classical heating, and (iii) use of microwave irradiation. Influence of reaction temperature and molar ratio of reagents, as well as the nature of the solvent, was studied using these three different methods.


ChemInform ◽  
2008 ◽  
Vol 39 (29) ◽  
Author(s):  
Qingqing Shao ◽  
Shujiang Tu ◽  
Chunmei Li ◽  
Longji Cao ◽  
Dianxiang Zhou ◽  
...  

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