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Immobilized TiO 2 nanoparticles on carbon nanotubes: an efficient heterogeneous catalyst for the synthesis of chromeno[ b ]pyridine derivatives under ultrasonic irradiation.
- Source :
-
RSC advances [RSC Adv] 2019 Dec 17; Vol. 9 (71), pp. 41868-41876. Date of Electronic Publication: 2019 Dec 17 (Print Publication: 2019). - Publication Year :
- 2019
-
Abstract
- A new protocol for the synthesis of chromeno[ b ]pyridine derivatives is described via a three-component reaction of 4-aminocoumarin, aromatic aldehydes and malononitrile catalyzed by TiO <subscript>2</subscript> nanoparticles immobilized on carbon nanotubes (TiO <subscript>2</subscript> -CNTs) as an efficient heterogeneous catalyst under ultrasonic irradiation in water. The sustainable and economic benefits of the protocol are the high yields of products, short reaction time, simple work-up procedure, and use of a non-toxic and reusable catalyst.<br />Competing Interests: There are no conflicts to declare.<br /> (This journal is © The Royal Society of Chemistry.)
Details
- Language :
- English
- ISSN :
- 2046-2069
- Volume :
- 9
- Issue :
- 71
- Database :
- MEDLINE
- Journal :
- RSC advances
- Publication Type :
- Academic Journal
- Accession number :
- 35557875
- Full Text :
- https://doi.org/10.1039/c9ra09031b