[18-C-6H3O+]: an in-situ generated macrocyclic complex and an efficient, novel catalyst for synthesis of pyrano[2,3-c]pyrazole derivatives
description: Synthesis of small aromatic heterocycles is of greater importance in the organic chemistry due to their vibrant applications in pharmaceuticals, agrochemicals and veterinary products. Pyranopyrazoles are one such class of heterocycles associated with numerous applications. Hence herein we report a multicomponent crown ether catalyzed, ultrasound irradiated methodology to make different functionalized pyranopyrazoles in a single step. This technique involves the in-situ generation of [18-C-6H3O+][OH?] complex, which in turn activates the aromatic aldehyde and aids in the facile nucleophilic addition. 2020, The Author(s).
creator: Mishra M.; Jomon K.J.; Krishnan V.R.S.; Nizam A.
source: Scientific Reports, Vol-10, No. 1
publisher: Nature Research
date: 2020-01-01
rights: All Open Access; Gold Open Access; Green Open Access
relation: ISSN: 20452322; PubMed ID: 32868818
format: Online
language: English
type: Article
coverage: Mishra M., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bangalore, 560029, India; Jomon K.J., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bangalore, 560029, India; Krishnan V.R.S., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bangalore, 560029, India; Nizam A., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bangalore, 560029, India