{"data":{"id":"10.6084/m9.figshare.c.3263698.v1","type":"dois","attributes":{"doi":"10.6084/m9.figshare.c.3263698.v1","prefix":"10.6084","suffix":"m9.figshare.c.3263698.v1","identifiers":[],"alternateIdentifiers":[],"creators":[{"name":"Davood Azarifar","affiliation":[],"nameIdentifiers":[]},{"name":"Omolbanin Badalkhani","affiliation":[],"nameIdentifiers":[]},{"name":"Abbasi, Younes","nameType":"Personal","givenName":"Younes","familyName":"Abbasi","affiliation":[],"nameIdentifiers":[]}],"titles":[{"title":"Silica-modified magnetite Fe\u003csub\u003e3\u003c/sub\u003eO\u003csub\u003e4\u003c/sub\u003e nanoparticles grafted with sulfamic acid functional groups: an efficient heterogeneous catalyst for the synthesis of 3,4-dihydropyrimidin-2(1\u003cb\u003e\u003ci\u003eH\u003c/i\u003e\u003c/b\u003e)-one and tetrahydrobenzo[b]pyran derivatives"}],"publisher":"Figshare","container":{},"publicationYear":2016,"subjects":[{"subject":"Biophysics"},{"subject":"Biochemistry"},{"subject":"Space Science"},{"subject":"29999 Physical Sciences not elsewhere classified","subjectScheme":"FOR"},{"subject":"FOS: Physical sciences","schemeUri":"http://www.oecd.org/science/inno/38235147.pdf","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"FOS: Physical sciences","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"Medicine"},{"subject":"Pharmacology"},{"subject":"Biotechnology"},{"subject":"39999 Chemical Sciences not elsewhere classified","subjectScheme":"FOR"},{"subject":"FOS: Chemical sciences","schemeUri":"http://www.oecd.org/science/inno/38235147.pdf","subjectScheme":"Fields of Science and Technology (FOS)"},{"subject":"FOS: Chemical sciences","subjectScheme":"Fields of Science and Technology (FOS)"}],"contributors":[],"dates":[{"date":"2016-06-02","dateType":"Created"},{"date":"2016-06-02","dateType":"Updated"},{"date":"2016","dateType":"Issued"}],"language":null,"types":{"ris":"GEN","bibtex":"misc","citeproc":"article","schemaOrg":"Collection","resourceType":"Collection","resourceTypeGeneral":"Collection"},"relatedIdentifiers":[{"relationType":"IsSupplementTo","relatedIdentifier":"10.1080/17415993.2016.1177055","relatedIdentifierType":"DOI"},{"relationType":"IsIdenticalTo","relatedIdentifier":"10.6084/m9.figshare.c.3263698","relatedIdentifierType":"DOI"}],"relatedItems":[],"sizes":[],"formats":[],"version":null,"rightsList":[{"rights":"CC-BY","rightsUri":"http://creativecommons.org/licenses/by/3.0/us"}],"descriptions":[{"description":"Silica-modified magnetite-polyoxometalates functionalized with sulfamic acid groups as hybrid nanoparticles were prepared by sulfonation of diamine-functionalized propyl group grafted on the magnetic silica-coated Fe\u003csub\u003e3\u003c/sub\u003eO\u003csub\u003e4\u003c/sub\u003e nanoparticles. This heterogeneous nanocatalyst was explored to present high catalytic performance for the synthesis of 3,4-dihydropyrimidinones and tetrahydrobenzo[b]pyrans under mild reaction conditions. The properties of this nanocatalyst were characterized by FT- infrared, energy-dispersive X-ray spectrum, scanning electron microscope, X-ray diffraction, X-ray fluorescence and elemental analysis. Easy separation of the nanocatalyst by using an external magnet, recyclability, non-toxicity, versatility and high stability of the catalyst combined with low reaction times and excellent yields make the present protocol very useful and attractive for the synthesis of the titled products.","descriptionType":"Abstract"}],"geoLocations":[],"fundingReferences":[],"xml":"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