@article { author = {Hoseini, Zahra and Davoodnia, Abdolghasem and Pordel, Mehdi}, title = {Another Successful Application of Newly Prepared GO-SiC3-NH3-H2PW as Highly Efficient Nanocatalyst for Fast Synthesis of Tetrahydrobenzo[b]pyrans}, journal = {Advanced Journal of Chemistry, Section A}, volume = {4}, number = {1}, pages = {68-77}, year = {2021}, publisher = {Sami Publishing Company}, issn = {2645-7768}, eissn = {2645-5676}, doi = {10.22034/ajca.2021.259593.1228}, abstract = {In this work, the newly prepared functionalized graphene oxide (GO), denoted as GO-SiC3-NH3-H2PW, was found as an effective nanocatalyst for a one-pot reaction of dimedone, aryl aldehydes, and malononitrile, giving rise to tetrahydrobenzo[b]pyran derivatives. The reactions were conducted in water, giving the corresponding products in 88-98% yields over 4-15 min. Other advantages of the method include cheap catalyst, easy work-up, absence of any dangerous solvents and the catalyst's reusability for up to five consecutive runs (97, 96, 95, 95, and 94 in first to fifth use, respectively).}, keywords = {Tetrahydrobenzo[b]pyran,H3PW12O40,functionalized graphene oxide}, url = {http://www.ajchem-a.com/article_123042.html}, eprint = {http://www.ajchem-a.com/article_123042_01435ba1f417330fb7671085ed5a76ac.pdf} }