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Multicomponent cyclocondensation reactions of aminoazoles, arylpyruvic acids and aldehydes with controlled chemoselectivity

Multicomponent cyclocondensation reactions of aminoazoles, arylpyruvic acids and aldehydes with controlled chemoselectivity

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SAKHNO, Yana I., Sergey M. DESENKO, Svetlana V. SHISHKINA, Oleg V. SHISHKIN, Dmytro O. SYSOYEV, Ulrich GROTH, C. Oliver KAPPE, Valentin A. CHEBANOV, 2008. Multicomponent cyclocondensation reactions of aminoazoles, arylpyruvic acids and aldehydes with controlled chemoselectivity. In: Tetrahedron. 64(49), pp. 11041-11049. ISSN 0040-4020. Available under: doi: 10.1016/j.tet.2008.09.089

@article{Sakhno2008Multi-1041, title={Multicomponent cyclocondensation reactions of aminoazoles, arylpyruvic acids and aldehydes with controlled chemoselectivity}, year={2008}, doi={10.1016/j.tet.2008.09.089}, number={49}, volume={64}, issn={0040-4020}, journal={Tetrahedron}, pages={11041--11049}, author={Sakhno, Yana I. and Desenko, Sergey M. and Shishkina, Svetlana V. and Shishkin, Oleg V. and Sysoyev, Dmytro O. and Groth, Ulrich and Kappe, C. Oliver and Chebanov, Valentin A.} }

<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/1041"> <dc:contributor>Chebanov, Valentin A.</dc:contributor> <dc:contributor>Kappe, C. Oliver</dc:contributor> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-22T17:54:55Z</dcterms:available> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dc:creator>Sakhno, Yana I.</dc:creator> <dc:creator>Desenko, Sergey M.</dc:creator> <dc:creator>Kappe, C. Oliver</dc:creator> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-22T17:54:55Z</dc:date> <dc:contributor>Shishkin, Oleg V.</dc:contributor> <dc:contributor>Sysoyev, Dmytro O.</dc:contributor> <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/> <dc:creator>Chebanov, Valentin A.</dc:creator> <dc:contributor>Sakhno, Yana I.</dc:contributor> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:contributor>Shishkina, Svetlana V.</dc:contributor> <dc:creator>Shishkina, Svetlana V.</dc:creator> <dc:rights>terms-of-use</dc:rights> <dc:contributor>Desenko, Sergey M.</dc:contributor> <dc:creator>Groth, Ulrich</dc:creator> <dcterms:title>Multicomponent cyclocondensation reactions of aminoazoles, arylpyruvic acids and aldehydes with controlled chemoselectivity</dcterms:title> <dcterms:issued>2008</dcterms:issued> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/29"/> <dc:language>eng</dc:language> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/29"/> <dc:contributor>Groth, Ulrich</dc:contributor> <dc:creator>Shishkin, Oleg V.</dc:creator> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/1041"/> <dcterms:abstract xml:lang="eng">The multicomponent reactions of 3-amino-1,2,4-triazoles/5-aminotetrazole with phenylpyruvic acids and aromatic aldehydes were studied using conventional thermal heating, ultrasonification and microwave dielectric heating. Two different reaction pathways for these cyclocondensations occurring under either kinetic or thermodynamic control were established depending on the temperature regime and building block selection. In case of aminotriazoles, an unprecedented reaction pathway leading to 5-aryl-7-hydroxy-6-phenyl-4,5,6,7-tetrahydro[1,2,4]triazolo[1,5-a]pyrimidine-7-carboxylic acids was found and discussed.</dcterms:abstract> <dc:creator>Sysoyev, Dmytro O.</dc:creator> <dcterms:bibliographicCitation>Publ. in: Tetrahedron 64 (2008), 49, pp. 11041-11049</dcterms:bibliographicCitation> </rdf:Description> </rdf:RDF>

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