时间：2020年12月9日 上午9:00
地点；化学老楼102
李兴伟教授简介：
1996年于复旦大学获理学学士学位，2005年于美国耶鲁大学化学系获博士学位。2005-2006年在加州理工学院从事博士后研究。2006-2009年先后在新加坡南洋理工大学和美国Scripps研究所任助理教授。2010-2018年在中科院大连化学物理研究所任研究员。2018年起就职于陕西师范大学。主要从事金属有机化学和合成方法学研究，共发表研究论文200篇，总他引一万一千余次， H-指数为63。获得的荣誉主要有国家杰出青年科学基金（2015）、万人计划科技领军人才（2018）、全球高被引学者（2018、2019、2020）。2015年入选英国皇家化学会会士（FRSC）。
C-H bond activation has been established as an increasingly important strategy to access value-added organics. In contrast to the typical lower-valent metal catalysts, higher valent Rh(III) catalysts have exhibited exceptionally high activity in activation of aryl and alkenyl C(sp2)-H bond via formation of more polar M(III)-C bond. Despite advances, it is desirable to realize efficient C-H activation with precise control of reaction selectivities. This talk will particularly focuses on the control of reaction enantioselectivity using Rh(III) catalysts stabilized by chiral Cp ligands. By following desymmetrization of arenes and control of enantioselectivity in insertion of unsaturated coupling reagents, both axial and center chirality has been realized via integration of C-H activation and chemistries of strained ring and nucleophilic cyclizations. By following the same substrate activation strategy, enantioselective activation of C-C bonds has also been realized realized in annulation reactions.
