A 2-carbonyl-4-olefin-5-bromo -1,3-oxazine and the application of the synthetic method of the compound of (by machine translation)
The present invention provides 2-carbonyl-4-olefin-5-bromo -1,3-oxazine compounds and its synthetic method and application. The method comprises: the trifluoromethane sulfonic acid scandium/phosphorus-oxygen ligand and partially under the action of the so
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Paragraph 0053; 00137
(2017/03/08)
A highly stereoselective divergent synthesis of bicyclic models of photoreactive sesquiterpene lactones
Sesquiterpene lactones are natural stereochemically pure compounds, which show a number of biological activities. In order to study the reactivity of sesquiterpene lactones in biological systems, we describe herein the asymmetric synthesis of a simple mod
Memory effects in Pd-catalysed allylic alkylation: Stereochemical labelling through isotopic desymmetrization
2H-Labelled and 18O-labelled cyclopentenyl esters (±)-4 and (±)-5 are used as probes for memory effects in Pd-catalysed allylic alkylation. 2H-Labelled alkylation product 6 arising from stereospecific Pd-catalysed reaction
Lloyd-Jones, Guy C.,Stephen, Susanna C.
p. 2539 - 2549
(2007/10/03)
Studies towards asymmetric catalyzed metallo-ene reactions
The asymmetric catalyzed metallo-ene reaction was studied. Enantioselectivities up to 47% were observed using the Pd-ene reaction applied on the substrate 4.
Oppolzer, Wolfgang,Kuo, David L.,Hutzinger, Michael W.,Leger, Roger,Durand, Jean-O.,Leslie, Colin
p. 6213 - 6216
(2007/10/03)
A modular approach for ligand design for asymmetric allylic alkylations via enantioselective palladium-catalyzed ionizations
A new class of ligands for asymmetric transition metal catalysis based on 2-(diphenylphosphino)benzoic acid was used in a mechanistically-defined palladium-catalyzed reaction in which enantiodifferentiation was the result of selective ionization of substr
Trost, Barry M.,Van Vranken, David L.,Bingel, Carsten
p. 9327 - 9343
(2007/10/02)
Asymmetrische Liganden fuer uebergansmetallkatalysierte Reaktionen: 2-Diphenylphosphinobenzoylderivate C2-symmetrischer Diole und Diamine
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Trost, Barry M.,Vranken, David L. Van
p. 194 - 196
(2007/10/02)
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