【學(xué)術(shù)報(bào)告】Activation?of?dioxygen?and?carbon?dioxide?by?cerium?complexes
日期：2024-01-16
閱讀：3721
主題：Activation of dioxygen and carbon dioxide by cerium complexes
報(bào)告人：Prof. Kazushi Mashima，Osaka University
時(shí)間：2024年1月16日 (周二) 15:00~16:30
地點(diǎn)：徐名材報(bào)告廳 (霞光樓200號(hào))
邀請(qǐng)人：張萬斌 教授
個(gè)人簡(jiǎn)介
Department?of?Chemistry,
Graduate?School?of?Pharmaceutical?Sciences,
Osaka?University,
Suita,?Osaka?565-0871,?Japan.
Email:[email protected]
KM?has?focused?his?interest?in?development?of?metal-catalyzed?reactions?based?on?his?deep?understanding?of?reaction?mechanisms?by?an?aid?of?comprehensive?organometallic?chemical?approaches?including?isolation?and?determination?of?intermediate?species?as?well?as?kinetics.??His?achievements?are?thus?highlighted?by?the?following?lecture?titles.
報(bào)告摘要
We?found?that?in?situ?generated?cerium(IV)carboxylate?generated?by?mixing?the?precursor?Ce(OtBu)4withthe?corresponding?carboxylic?acids?served?as?efficient?photocatalystsfor?the?direct?formation?of?carboxyl?radicals?from?carboxylic?acidsunder?blue?light-emitting?diodes?(blue?LEDs)?irradiation?and?air,resulting?in?catalytic?decarboxylative?oxygenation?of?aliphaticcarboxylic?acids?to?give?C?O?bond-forming?products?such?asaldehydes?and?ketones.?Herein,?we?also?report?that?tetranuclear?complexes?including?cerium?atom?work?as?catalyst?for?oxidation?and?alternative?copolymerization?of?carbon?dioxide?and?epoxides.
