BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20250821T203023EDT-6906LOp4E2@132.216.98.100 DTSTAMP:20250822T003023Z DESCRIPTION:Carbocyclizations\, annulation processes involving carbon-carbo n bond formation via carbometalation\, constitute an extremely important a nd useful class of reaction for the syntheses of carbocyclic and heterocyc lic compounds. We have recently developed a number of selective palladium- catalyzed oxidative carbocyclizations of unsaturated systems often involvi ng the use of molecular oxygen as the oxidant in a biomimetic approach. Mi ld oxidative C-C bond formation under aerobic conditions can be achieved v ia this approach.\n\nWe have developed oxidative borylative and arylative carbocyclization of en­allenes\, allenynes\, and bis-allenes as well as  C -H activation/carbocyclization of arylallenes. For some recent application s see ref 1-5.\n\nIn another approach to biomimetic catalysis\, enzymes ha ve been combined with racemization catalysts for dynamic kinetic resolutio n.6 An example of the latter approach is the development of a biomimetic h ybrid catalyst that works as an artificial metalloenzyme.7\n\n1. T. Jiang\ , T. Bartholomeyzik\, J. Mazuela\, J. Willersinn\, and J. E. Bäckvall\, An gew. Chem. Int. Ed. 2015\, 54\, 6024–6027.\n\n2. C. Zhu\, B. Yang\, T. Jia ng\, and J. E. Bäckvall\, Angew. Chem. Int Ed. 2015\, 54\, 9066-9069.\n\n3 . J. Mazuela\, D. Banerjee\, and J. E. Bäckvall\, J. Am. Chem. Soc. 2015\, 137\, 9559-9562.\n\n4. C. Zhu\, B. Yang\, and J. E. Bäckvall\, J. Am.Chem . Soc. 2015\, 137\, 11868–11871.\n\n5. Y. Qiu\, B. Yang\, C. Zhu\, and J.- E. Bäckvall\, Angew. Chem. Int Ed. 2016\, 55\,  6520-6524.\n\n6. O. Verho and J. E. Bäckvall J. Am.Chem. Soc. 2015\, 137\, 3996–4009.\n\n7. K. Engst röm\, E. V. Johnston\, O. Verho\, K. Gustafson\, M. Shakeri\, C.-W. Tai\, and J. E. Bäckvall\, Angew. Chem. Int. Ed. 2013\, 52\, 14006–14010.\n DTSTART:20161018T170000Z DTEND:20161018T183000Z LOCATION:Rm 10\, Maass Chemistry Building\, CA\, QC\, Montreal\, H3A 0B8\, 801 rue Sherbrooke Ouest SUMMARY:CCVC Seminar: Dr. Jan-Erling Bäckvall: Biomimetic Catalysis in Gree n Organic Transformations URL:/chemistry/channels/event/ccvc-seminar-dr-jan-erli ng-backvall-biomimetic-catalysis-green-organic-transformations-261956 END:VEVENT END:VCALENDAR