TY - JOUR ID - 831 TI - Zn2SnO4 nanostructure as an efficient catalyst for the preparation of pyrano[3,2-c]chromene and pyrano[4,3-b]pyran derivatives under ultrasonic irradiation conditions JO - Journal of Particle Science and Technology JA - JPST LA - en SN - 2423-4087 AU - Nemat-Bakhsh, Nabi AU - Ghashang, Majid AD - Department of Chemistry, Faculty of Sciences, Najafabad Branch, Islamic Azad University, Najafabad, Iran Y1 - 2019 PY - 2019 VL - 5 IS - 1 SP - 61 EP - 69 KW - Zn2SnO4 nanoparticles KW - pyran derivatives KW - Multicomponent reaction KW - pyrano[3 KW - 2-c]chromene DO - 10.22104/jpst.2019.831 N2 - We plan to study the synthesis of Zn2SnO4 nanoparticles via a sol-gel method and evaluate their catalytic activity in the three-component reaction including active enolates, active methylene, and aldehydes leading to the formation of the pyran derivatives. Functionalized pyrano[3,2-c]chromenes and pyrano[4,3-b]pyran derivatives were synthesized via a one-pot, a three-component reaction under ultrasonic irradiation conditions in good to excellent yields. The catalyst was characterized by XRD, FESEM and TEM analyses. UR - https://jpst.irost.ir/article_831.html L1 - https://jpst.irost.ir/article_831_b7a209761d85505f3615b1ab556abcf8.pdf ER -