ORIENTAL JOURNAL OF CHEMISTRY www.orientjchem.org An International Open Free Access, Peer Reviewed Research Journal ISSN: 0970-020 X CODEN: OJCHEG 2016, Vol. 32, No. (5): Pg. Highly Efficient Synthesis of New 2H-chromene Dyes Using Cu-SBA-15 SHIRIN FARAJI KAMAZANI* and SIAVASH SALEK SOLTANI School of Chemistry, University College of Science, University of Tehran, Tehran, Iran. *Corresponding author E-mail: Shirinfaraji58@gmail.com doi (Received: June 12, 2016; Accepted: September 04, 2016) ABSTRACT In this work, some new azotated 2H-chromene derivatives were successfully synthesized by use of mesoporous Cu-SBA-15 as nanocatalyst leading short reaction times and high yields. By this research, the scope of azo compounds was increased. Keywords: Azo dye, Chromene, Mesoporous, Catalyst. Cu-SBA-15. INTRODUCTION 2 H -chromenes are very important heterocyclic compounds which have shown biological activities 1-4 , some medical properties such as antihypertensive 5 and cardio protectors as well as hypoglycemic agents 6,7 . Some of them are insecticide compounds 8 . In the recent years, they have been used in sensors for detection of metals and some compounds with high selectivity 9,10 . Until now, diverse methods have been published for the synthesis of 2H-benzopyran derivatives 11-17 .They are also good intermediates that have been applied in several organic synthesis 18-20 . Azo compounds are very considerable in dyes and pigments industry 21 . They are the main class of all synthetic dyes that are widely used in the world 22 . The importance of azo dyes returns to their significant physicochemical features such as stability 23 , optical properties 24,25 and their extensive applications in chemosensors 26,27 , liquid crystals 28 and nanotubes 29 . Recently, an enhancing attention has been concentrated on the development of new synthetic paths in processes employing functionalized mesoporous catalysts 30 . Mesoporous material has been grown in academia because of its extraordinary surface area, narrow size distribution of porosity, heat resistance and mechanical stability that make them outstanding catalysts 31,32 .