Evaluation of the Catalytic Capability of cis - and trans -Diquinoxaline Spanned Cavitands
In: ISSN: 1434-193X, 2019
Online
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International audience ; Evaluation of Catalytic Capability of cis-and trans-Diquinoxaline Spanned Cavitands Mami Inoue, [a] Shinsuke Kamiguchi, [a] Katto Ugawa, [a] Shaima Hkiri, [b,c] Jules Bouffard, [b] David Sémeril* [b] and Tetsuo Iwasawa* [a] Keywords: Introverted ligand / Cis-spanned cavitands / Diquinoxaline-extended resorcin[4]arene / Gold and Rhodium catalysis Three new cis-diquinoxaline spanned cavitands were synthetized. These cis-diphosphinated derivatives were assigned in homogeneous gold-catalyzed dimerization and hydration of alkynes, and rhodium-catalyzed styrene hydroformylation. Results were ranked with those obtained with their trans-diphosphinated analogues. The structure-activity relationship realized with these cis-or trans-flanked cavitands shows that the cis-or transpositioning of the catalytic center has a direct effect on the effectiveness of the cooperation between the two metallic centers. In fact, the distance between the two metal has a direct effect either on activity or on regioselectivity of a catalytic reaction.
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Evaluation of the Catalytic Capability of cis - and trans -Diquinoxaline Spanned Cavitands
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Autor/in / Beteiligte Person: | Inoue, Mami ; Kamiguchi, Shinsuke ; Ugawa, Katto ; Hkiri, Shaima ; Bouffard, Jules ; Sémeril, David ; Iwasawa, Tetsuo ; University, Ryukoku ; Institut de Chimie de Strasbourg ; Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
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Zeitschrift: | ISSN: 1434-193X, 2019 |
Veröffentlichung: | HAL CCSD ; Wiley-VCH Verlag, 2019 |
Medientyp: | academicJournal |
DOI: | 10.1002/ejoc.200((will |
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