报告时间:2020年11月18日(星期三)下午13:30
报告地点:能源基础楼二楼201会议室
报告人:李兴伟教授,陕西师范大学化学化工学院
报告摘要:
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 poarized Rh(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 can be constructed via integration of C–H activation, chemistries of strained ring, and nucleophilic cyclization. In addition, by following the strategy of substrate activation, enantioselective C–C activation of strained rings has also been realized using Ni(0) catalysts.
报告人简介:
李兴伟,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至2006年在加州理工学院从事博士后研究;2006至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至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,在国内最早开展了铑催化碳氢键活化研究,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)。
联系人:02T4组 陈庆安
联系电话:82463702