Tyagi, BeenaMishra, Manish K.Jasra, Raksh V.2012-02-152012-02-152007Journal of Molecular Catalysis A: Chemical 276 (2007) 47–56http://hdl.handle.net/1968424/836enNano-crystalline sulfated-zirconia; 7-Amino 4-methyl coumarin; 7-Hydroxy 4-methyl coumarin; Microwave assisted coumarin synthesisSynthesis of 7-substituted 4-methyl coumarins by Pechmann reaction using nano-crystalline sulfated-zirconiaArticle