مشخصات پژوهش

Solid acids have been used as catalysts in various functional groups transformations because catalysis has played a major role in preventing pollution in our environment. Recently, a wide range of solid acids reported for various chemical processes.1 Alginic acid, a naturally occurring polysaccharide, in its granular form and without any post-modification was found to be an efficient environmentally benign, easily recoverable and low-cost solid acid for organic transformation.2 Pyridine ring system, mainly 2,4,6-triarylpyridine is of enormous importance due to its unique position in medicinal chemistry.3 herein, we represent an efficient synthesis of 2,4,6-triarylpyridine derivatives via a green one-pot four component reaction using alginic acid as catalyst in a solvent free reaction (Scheme 1