Cycloadditions of 1-aza-2-azoniaallene cations to isothiocyanates


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EL-GAZZAR, Abdel-Rahman B.A, Kirsten SCHOLTEN, Yiping GUO, Kerstin WEISSENBACH, Martin HITZLER, Gerhard ROTH, Helmut FISCHER, Johannes JOCHIMS, 1999. Cycloadditions of 1-aza-2-azoniaallene cations to isothiocyanates. In: Journal of the Chemical Society, Perkin Transactions 1(14), pp. 1999-2010. ISSN 0300-922X

@article{El-Gazzar1999Cyclo-23040, title={Cycloadditions of 1-aza-2-azoniaallene cations to isothiocyanates}, year={1999}, doi={10.1039/A902505G}, number={14}, issn={0300-922X}, journal={Journal of the Chemical Society, Perkin Transactions 1}, pages={1999--2010}, author={El-Gazzar, Abdel-Rahman B.A and Scholten, Kirsten and Guo, Yiping and Weißenbach, Kerstin and Hitzler, Martin and Roth, Gerhard and Fischer, Helmut and Jochims, Johannes} }

<rdf:RDF xmlns:rdf="" xmlns:bibo="" xmlns:dc="" xmlns:dcterms="" xmlns:xsd="" > <rdf:Description rdf:about=""> <dc:rights>deposit-license</dc:rights> <dc:contributor>Guo, Yiping</dc:contributor> <dc:creator>Roth, Gerhard</dc:creator> <dc:date rdf:datatype="">2013-06-12T08:04:14Z</dc:date> <dcterms:available rdf:datatype="">2013-06-12T08:04:14Z</dcterms:available> <dc:contributor>Roth, Gerhard</dc:contributor> <dc:creator>Scholten, Kirsten</dc:creator> <dcterms:issued>1999</dcterms:issued> <dcterms:title>Cycloadditions of 1-aza-2-azoniaallene cations to isothiocyanates</dcterms:title> <dc:contributor>Jochims, Johannes</dc:contributor> <dc:creator>El-Gazzar, Abdel-Rahman B.A</dc:creator> <dc:language>eng</dc:language> <dcterms:rights rdf:resource=""/> <dc:creator>Jochims, Johannes</dc:creator> <dc:contributor>Fischer, Helmut</dc:contributor> <dc:creator>Weißenbach, Kerstin</dc:creator> <dc:creator>Guo, Yiping</dc:creator> <dc:contributor>Weißenbach, Kerstin</dc:contributor> <dc:creator>Hitzler, Martin</dc:creator> <dcterms:abstract xml:lang="eng">Isothiocyanates react as S-nucleophiles with 1-aza-2-azoniaallene salts 1 to give different types of 1,3,4-thiadiazolium salts (9, 11, 12) and 1,2,4-triazolium salts (10). Which product is formed, depends on the one hand on the ability of a substituent of the heteroallene salt 1 to undergo a [1,2] shift as a positively charged migrant (generalized Wagner–Meerwein rearrangement) or to act as a cationic leaving group, and on the other hand on Dimroth rearrangement of the initially formed thiadiazolium salt 8 to triazolium salts. The structures of the thiadiazolium salt 9c and the triazolium salt 10d were confirmed by X-ray structural analyses.</dcterms:abstract> <dc:contributor>Hitzler, Martin</dc:contributor> <bibo:uri rdf:resource=""/> <dc:contributor>El-Gazzar, Abdel-Rahman B.A</dc:contributor> <dc:creator>Fischer, Helmut</dc:creator> <dc:contributor>Scholten, Kirsten</dc:contributor> <dcterms:bibliographicCitation>Journal of the Chemical Society, Perkin Transactions 1 ; 14 (1999). - S. 1999-2010</dcterms:bibliographicCitation> </rdf:Description> </rdf:RDF>

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