Journal
GREEN CHEMISTRY LETTERS AND REVIEWS
Volume 13, Issue 3, Pages 28-41Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/17518253.2020.1797183
Keywords
Ultrasound irradiation; Eco-friendly catalyst; SBA-15; H5PW10V2O40; Heteropolyacid; Pyridine; Green chemistry
Funding
- University of Kashan [573600/2]
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A facile one-pot protocol for the synthesis of 2-amino-3-cyanopyridins using SBA-15@Triazine/H(5)PW(10)V(2)O(40)as an efficient catalyst under ultrasonic conditions has been developed. The nanohybrid catalyst was prepared by the chemical anchoring of Keggin heteropolyacid H(5)PW(10)V(2)O(40)onto the surface of SBA-15 mesoporous silica modified with 2-APTS -4,6-bis(3,5-dimethyl-1H-pyrazol- 1-yl)-1,3,5-triazine (ADMPT) linker. Then the nanohybrid was used as a green, efficient, eco-friendly, and highly recyclable catalyst for the one-pot and multi-component synthesis of 2-amino-3-cyanopyridin derivatives from the reaction of aldehydes, malononitrile, cyclic ketones and ammonium acetate under ultrasound waves with good to excellent yields (79-95%) and in a short span of time. This nanocatalyst was characterized by using FT-IR, XRD, SEM, TEM, BET, and EDX techniques.
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