Synlett

Microwave-Promoted and Lewis Acid Catalysed Synthesis of 2, 4, 6-Triarylpyridines Using Urea as Benign Source of Ammonia

M Borthakur, M Dutta, S Gogoi, RC Boruah

Index: Borthakur, Moyurima; Dutta, Mandakini; Gogoi, Shyamalee; Boruah, Romesh C. Synlett, 2008 , # 20 p. 3125 - 3128

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Citation Number: 20

Abstract

Abstract An efficient method for the synthesis of 2, 4, 6-triarylpyridines via microwave- promoted and BF 3 OEt 2-catalysed one-pot reaction of ω-pyrrolidinoacetophenone with chalcone is reported. This method illustrates urea as an environmentally benign source of ammonia for the synthesis of 2, 4, 6-triarylpyridines.

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A novel and efficient 2, 4, 6-trisubstituted pyridine ring s...

[Katritzky, Alan R.; Abdel-Fattah, Ashraf A. A.; Tymoshenko, Dmytro O.; Essawy, Samy A. Synthesis, 1999 , # 12 p. 2114 - 2118]

Studies on cycloimmonium ylides. Synthesis of some 2, 4, 6-t...

[Tewari, R. S.; Dubey, A. K. Journal of Chemical & Engineering Data, 1980 , vol. 25, # 1 p. 91 - 92]

Synthesis of 4-arylpyridines

[Weller, Dwight D.; Luellen, Glenn R.; Weller, Doreen L. Journal of Organic Chemistry, 1982 , vol. 47, # 24 p. 4803 - 4806]