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Influence of chelating silyl scavengers on the diastereoselectivity of chromium catalyzed pinacol cross couplings

Influence of chelating silyl scavengers on the diastereoselectivity of chromium catalyzed pinacol cross couplings

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FISCHER, Stefan, Ulrich GROTH, Marc JUNG, Marion LINDENMAIER, Till VOGEL, 2005. Influence of chelating silyl scavengers on the diastereoselectivity of chromium catalyzed pinacol cross couplings. In: Tetrahedron letters. 46(39), pp. 6679-6682. ISSN 0040-4039

@article{Fischer2005Influ-10067, title={Influence of chelating silyl scavengers on the diastereoselectivity of chromium catalyzed pinacol cross couplings}, year={2005}, doi={10.1016/j.tetlet.2005.07.142}, number={39}, volume={46}, issn={0040-4039}, journal={Tetrahedron letters}, pages={6679--6682}, author={Fischer, Stefan and Groth, Ulrich and Jung, Marc and Lindenmaier, Marion and Vogel, Till} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/10067"> <dc:contributor>Jung, Marc</dc:contributor> <dcterms:issued>2005</dcterms:issued> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/10067"/> <dcterms:bibliographicCitation>First publ. in: Tetrahedron letters 46 (2005), 39, pp. 6679-6682</dcterms:bibliographicCitation> <dc:contributor>Vogel, Till</dc:contributor> <dc:creator>Groth, Ulrich</dc:creator> <dc:creator>Lindenmaier, Marion</dc:creator> <dcterms:title>Influence of chelating silyl scavengers on the diastereoselectivity of chromium catalyzed pinacol cross couplings</dcterms:title> <dc:contributor>Fischer, Stefan</dc:contributor> <dc:creator>Jung, Marc</dc:creator> <dc:language>eng</dc:language> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T18:16:22Z</dcterms:available> <dc:creator>Vogel, Till</dc:creator> <dc:contributor>Groth, Ulrich</dc:contributor> <dcterms:abstract xml:lang="eng">The choice of the silyl scavenger shows a substantial influence on the diastereoselectivity of the chromium catalyzed pinacol cross coupling. In the case of the intramolecular cyclization, two competing effects are observed. If the silylation reagents contain chelating heteroatoms in the side chain, a remarkable trans-selectivity is observed. Conversely the cis-diols are preferred if bulky substituted scavengers are used. A suitable transition state model for this reaction is reported, based on formerly published results.</dcterms:abstract> <dc:format>application/pdf</dc:format> <dcterms:rights rdf:resource="https://creativecommons.org/licenses/by-nc-nd/2.0/legalcode"/> <dc:creator>Fischer, Stefan</dc:creator> <dc:contributor>Lindenmaier, Marion</dc:contributor> <dc:rights>deposit-license</dc:rights> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T18:16:22Z</dc:date> </rdf:Description> </rdf:RDF>

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