Zirconia Supported on Rice Husk Silica from Biowaste: A Novel, Efficient, and Recoverable Nanocatalyst for the Green Synthesis of Tetrahydro-1-benzopyrans
subject: heterogeneous reusable catalyst; multicomponent reactions (MCR); rice husk silica-supported zirconia; tetrahydro-1-benzopyrans
description: Abstract: Zirconia supported silica from rice husk (an agricultural waste) has been utilized as a novel and efficient heterogeneous catalyst for the synthesis of bioactive tetrahydro-1-benzopyran derivatives via multicomponent condensation of various aldehydes with dimedone and malononitrile. This protocol offers various advantages such as high yields, simple experimental work-up procedure, short reaction time, no by-products, economic availability, easy purification, and reusability of the catalyst. 2020, Pleiades Publishing, Ltd.
creator: Mishra M.; Devi K.R.S.; Pinheiro D.; Nizam A.
source: Russian Journal of Organic Chemistry, Vol-56, No. 10, pp. 1784-1789.
publisher: Pleiades journals
date: 2020-01-01
rights: Restricted Access
relation: ISSN: 10704280; CODEN: RJOCE
format: Online
language: English
type: Article
coverage: Mishra M., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, Karnataka, India; Devi K.R.S., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, Karnataka, India; Pinheiro D., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, Karnataka, India; Nizam A., Department of Chemistry, CHRIST (Deemed to be University), Bangalore, 560029, Karnataka, India