Efficient Synthesis of 2,4,5-Substituted Thiazoles via Intramolecular Knoevenagel Condensation-Cyclization Reaction Using TEA under Microwave Irradiation Conditions

2018 ◽  
Vol 3 (20) ◽  
pp. 5678-5687 ◽  
Author(s):  
Suresh S. Kumbar ◽  
Kallappa M. Hosamani
Keyword(s):  
Microwave Irradiation ◽  
Knoevenagel Condensation ◽  
Cyclization Reaction ◽  
Efficient Synthesis

Microwave Irradiation: Synthesis and Characterization of Substituted Pyranoquinolines

2020 ◽  
Vol 17 ◽  
Author(s):  
Maharajan Abirami ◽  
Senniappan Thamarai Selvi ◽  
Vetrivel Nadaraj
Keyword(s):  
Reaction Time ◽  
Microwave Irradiation ◽  
Elemental Analysis ◽  
Knoevenagel Condensation ◽  
Ethyl Cyanoacetate ◽  
Cyclization Reaction ◽  
Synthesis And Characterization ◽  
Yield And Purity

: A new series of pyrano[2,3-b]quinolines were synthesized from 3-formylquinolin-2(1H)-ones via Knoevenagel condensation followed by cyclization reaction of ethyl cyanoacetate using DMSO as solvent. This methodology is a simple; clean, fast, efficient, eco-friendly, less reaction time with an improvement in the yield and purity of the product. The structures of newly synthesized compounds were confirmed by IR, NMR, Mass and elemental analysis.

scholarly journals Rapid and Efficient Synthesis ofω-Alkylenediphosphoric Acids from Phosphorus Oxychloride

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Dalila Meziane ◽  
Abdelhamid Elias ◽  
Erwann Guénin
Keyword(s):  
Microwave Irradiation ◽  
Reaction Temperature ◽  
Phosphorus Oxychloride ◽  
Molar Ratio ◽  
Efficient Synthesis ◽  
Selective Method

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 Abstract: Green and High Efficient Synthesis of Triaza-benzo[b]fluoren-6-one Derivatives in Water under Microwave Irradiation.

ChemInform ◽  
2008 ◽  
Vol 39 (29) ◽  
Author(s):  
Qingqing Shao ◽  
Shujiang Tu ◽  
Chunmei Li ◽  
Longji Cao ◽  
Dianxiang Zhou ◽  
...  
Keyword(s):  
Microwave Irradiation ◽  
Efficient Synthesis ◽  
High Efficient

Rh(iii)-catalyzed cyclization reaction of azoles with alkynes: efficient synthesis of azole-fused-pyridines

2015 ◽  
Vol 13 (35) ◽  
pp. 9186-9189 ◽  
Author(s):  
Xuebing Chen ◽  
Youzhi Wu ◽  
Jinyi Xu ◽  
Hequan Yao ◽  
Aijun Lin ◽  
...  
Keyword(s):  
Cyclization Reaction ◽  
Efficient Synthesis

A Rh(iii)-catalyzed cyclization of azoles with alkynes has been developed to construct azole-fused-pyridines in good to excellent yields.

ChemInform Abstract: Efficient Synthesis of 2,8-Diazabicyclo(4.3.0)nonane Derivatives via Intramolecular Cyclization Reaction.

ChemInform ◽  
2010 ◽  
Vol 27 (7) ◽  
pp. no-no
Author(s):  
J. W. LEE ◽  
H. J. SON ◽  
J. H. LEE ◽  
Y. E. JUNG ◽  
G. J. YOON ◽  
...  
Keyword(s):  
Intramolecular Cyclization ◽  
Cyclization Reaction ◽  
Efficient Synthesis
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