Zobrazeno 1 - 10 of 24 pro vyhledávání: '"Gustav Dickmeiss"'
1
Asymmetric Formal trans-Dihydroxylation and trans-Aminohydroxylation of α,β-Unsaturated Aldehydes via an Organocatalytic Reaction Cascade
Autor: Signe Grann Hansen, Hao Jiang, Gustav Dickmeiss, Łukasz Albrecht, Karl Anker Jørgensen, Björn Gschwend
Publikováno v: Journal of the American Chemical Society. 132:9188-9196
This study demonstrates the first formal asymmetric trans-dihydroxylation and trans-aminohydroxylation of alpha,beta-unsaturated aldehydes in an organocatalytic multibond forming one-pot reaction cascade. This efficient process converts alpha,beta-un
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47db8a9b3dc586a35d80aa437fc35c57
https://doi.org/10.1021/ja103538s
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2
Organocatalytic Asymmetric Synthesis of Versatile γ-Lactams
Autor: Gustav Dickmeiss, Jacob Overgaard, Karl Anker Jørgensen, Thomas B. Poulsen
Publikováno v: Aarhus University
Poulsen, T B, Dickmeiss, G, Overgaard, J & Jørgensen, K A 2008, ' Organocatalytic Asymmetric Synthesis of Versatile γ-Lactams. ', Angewandte Chemie International Edition, vol. 47, pp. 4687-4690 .
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0b97087bc61387a7139e22edbb5f5ad
https://doi.org/10.1002/ange.200800329
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6
Dienamine-mediated inverse-electron-demand hetero-diels-alder reaction by using an enantioselective H-bond-directing strategy
Autor: Gustav Dickmeiss, Łukasz Albrecht, Karl Anker Jørgensen, Carles Rodríguez-Escrich, Christian F. Weise
Publikováno v: Albrecht, L K, Dickmeiss, G, Weise, C F, Rodríguez-Escrich, C & Jørgensen, K A 2012, ' Dienamine-Mediated Inverse-Electron-Demand Hetero-Diels–Alder Reaction by Using an Enantioselective H-Bond-Directing Strategy ', Angewandte Chemie, vol. 124, no. 52, pp. 13286-13290 . https://doi.org/10.1002/ange.201207122
Giving directions: optically active dihydropyrans bearing three contiguous stereogenic centers can be efficiently prepared by the title reaction. High stereo- and regiocontrol can be achieved by employing a bifunctional H-bond-directing aminocatalyst
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7bb61117e89f7c788d9053373b27f198
https://pubmed.ncbi.nlm.nih.gov/23148030
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7
ChemInform Abstract: Asymmetric Organocatalytic Formal [2 + 2]-Cycloadditions via Bifunctional H-Bond Directing Dienamine Catalysis
Autor: Carles Rodríguez-Escrich, Fabio Cruz Acosta, Lukasz Albrecht, Rebecca L. Davis, Gustav Dickmeiss, Karl Anker Joergensen
Publikováno v: ChemInform. 43
Rational catalyst design supported by computational studies enables the development of a new dual activation mode for the synthesis of fully substituted cyclobutanes with complete diastereo- and enantioselectivity.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6271af21490e6c11d008e6abaf7a9a79
https://doi.org/10.1002/chin.201233056
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8
Selective access to both diastereoisomers in an enantioselective intramolecular Michael reaction by using a single chiral organocatalyst and application in the formal total synthesis of (-)-epibatidine
Autor: Christian F. Weise, Gustav Dickmeiss, Kim L. Jensen, Fabio Morana, Karl Anker Jørgensen, Rebecca L. Davis
Publikováno v: Jensen, K L, Weise, C F, Dickmeiss, G, Morana, F, Davis, R & Jørgensen, K A 2012, ' Selective Access to Both Diastereoisomers in an Enantioselective Intramolecular Michael Reaction by Using a Single Chiral Organocatalyst and Application in the Formal Total Synthesis of (-)-Epibatidine ', Chemistry: A European Journal, vol. 18, no. 38, pp. 11913–11918 . https://doi.org/10.1002/chem.201202353
Two in one: Both diastereoisomers of 4-nitro-3-substituted cyclohexanones are accessed selectively by an intramolecular Michael reaction using a single chiral aminocatalyst (see scheme). Mechanistic studies show that the reaction is selective for the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d663cd986cbf2f7af7e252499e40ec0f
https://pubmed.ncbi.nlm.nih.gov/22907652
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9
Asymmetric Organocatalytic Formal [2 + 2]-Cycloadditions via Bifunctional H-Bond Directing Dienamine Catalysis
Autor: Karl Anker Jørgensen, Rebecca L. Davis, Carles Rodríguez-Escrich, Gustav Dickmeiss, Fabio Cruz Acosta, Łukasz Albrecht
Publikováno v: Albrecht, L K, Dickmeiss, G, Cruz Acosta, F, Rodríguez-Escrich, C, Davis, R L & Jørgensen, K A 2012, ' Asymmetric Organocatalytic Formal [2 + 2]-Cycloadditions via Bifunctional H-Bond Directing Dienamine Catalysis ', Journal of the American Chemical Society, vol. 134, no. 5, pp. 2543-2546 . https://doi.org/10.1021/ja211878x
A new concept in organocatalysis allowing for the construction of cyclobutanes with four contiguous stereocenters with complete diastereo- and enantiomeric control by a formal [2 + 2]-cycloaddition is presented. The concept is based on simultaneous d
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dfd01282daea8285e0e6d854c922a951
https://pure.au.dk/portal/da/publications/asymmetric-organocatalytic-formal-2--2cycloadditions-via-bifunctional-hbond-directing-dienamine-catalysis(64a0474d-7c94-4ed6-ad85-f9e72a48c4fa).html
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