Green in water sonochemical synthesis of tetrazolopyrimidine derivatives by a novel core-shell magnetic nanostructure catalyst
Authors:
- Ali Maleki,
- Jamal Rahimi,
- Oleg M. Demchuk,
- Agnieszka Z. Wilczewska,
- Radomir Jasiński
Abstract
A green approach for the one-pot four-component sonochemical synthesis of 5-methyl-7-aryl-4,7-dihydrotetrazolo[1,5-a]pyrimidine-6-carboxylic esters from the reaction of 2-cyano-guanidine, sodium azide, various aromatic aldehydes and methyl or ethyl acetoacetate in the presence of a catalytic amount of Fe2O3@SiO2-(CH2)3NHC(O)(CH2)2PPh2 as a new hybrid organic–inorganic core–shell nanomagnetic catalyst is described. This is the first design, preparation, characterization and application of the present nanomaterial and also the first ultrasound irradiated synthesis of the biologically and pharmaceutically important heterocyclic compounds in water as a green solvent. This novel sonocatalysis/nanocatalysis protocol offers several advantages such as high yields, short reaction times, environmentally-friendly reaction media, easily isolation of the products, simple preparation, full characterization and recoverability of the nanocatalyst by an external magnet and reusing several times without significant loss of activity.
- Record ID
- CUT2c99728d863f45459a30faed66339f53
- Publication categories
- ;
- Author
- Journal series
- Ultrasonics Sonochemistry, ISSN 1350-4177, e-ISSN 1873-2828
- Issue year
- 2018
- Vol
- 43
- Pages
- 262-271
- Other elements of collation
- fot.; schem.; tab.; wykr.; Bibliografia (na s.) - 270-271; Bibliografia (liczba pozycji) - 34; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 43
- Keywords in English
- catalysis
- DOI
- DOI:10.1016/j.ultsonch.2017.12.047 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/pii/S1350417717306314 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 45
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT2c99728d863f45459a30faed66339f53/
- URN
urn:pkr-prod:CUT2c99728d863f45459a30faed66339f53
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.