报告题目:Regioselective Pyridine C–H-Functionalization and Skeletal Editing
报告人:Armido Studer教授,明斯特大学
报告时间:2026年3月23日(周一)9:30
报告地点:创隆厅
报告人简介:Armido Studer教授,有机化学家、自由基化学领域国际知名学者、德国明斯特大学教授。他于1995年在苏黎世联邦理工学院Dieter Seebach教授的指导下获得博士学位。随后,他作为瑞士国家科学基金会博士后研究员在匹兹堡大学与Dennis P. Curran教授一起继续进行科学研究。1996年,他在苏黎世联邦理工学院开始了他的独立科研职业生涯,2000年成为德国马尔堡菲利普斯大学有机化学副教授,2004年被任命为德国明斯特大学有机化学教授。Studer教授为自由基化学的复兴做出了重大贡献,并获得诸多奖项和荣誉,包括莱布尼茨奖(2026)、阿道夫冯贝耶尔纪念奖章(2025)、Arthur C. Cope Late Career Scholars Award (2024)和英国皇家化学会佩德勒奖(2019)等。他的开创性方法在Science, Nature, Nature Chemistry, Nature Synthesis等顶级期刊上发表了400多篇论文。他于2019年当选为英国皇家化学会会士,2020年当选为德国国家科学院院士,于2021年当选为欧洲人文和自然科学院院士。
报告简介:Pyridines belong to the most abundant heteroarenes in medicinal chemistry and in agrochemical industry. In the lecture, highly regioselective pyridine C-H functionalization through a dearomatization/rearomatization sequence will be discussed. The dearomatized oxazino pyridines can be easily prepared on a large scale, and meta-functionalization becomes achievable through light-initiated radical alkylation and ionic transformations. As example, using such an approach meta-fluorinated pyridines are readily accessible. The same intermediates upon protonation to give the corresponding pyridinium salts also allow the highly regioselective radical Minisci para-alkylation. In addition, Cu-catalyzed meta-arylation and switchable radical para/meta-difluoromethylation through such intermediates will be presented. Radical meta-nitration and ionic meta-hydroxylation work equally well through such intermediates. Finally, it will be shown that this dearomatization concept is also applicable to pyridine skeletal editing. Further, it will be discussed that an alternative radical dearomatization process can be used for C to N mutation in indoles and benzofurans.