Doctoral Dissertation Defense: Chuan He & Hua Zhang

Two excellent  Ph.D candidates in our lab gave their doctoral dissertation defenses on May 27th, 2013.

The chairman of the dissertation committee is Prof. Chen-Ho Tung (佟振合)(academician of Chinese Academy of Science, Technical Institute of Physics and Chemistry, CAS), and other four members are Prof. Huanfeng Jiang(江焕峰) (South China University of Technology), Prof. Lei Liu(刘磊) (Tsinghua University), Prof. Jingui Qin (秦金贵)(Wuhan University) and Prof. Xumu Zhang(张绪穆) (Wuhan University).

Firstly, Mr.Chuan He presented his work with the title of “Transition Metal Copper and Silver Mediated C-N and C-C Coupling Reactions and Mechanistic Investigation”. One of his main works is copper-catalyzed C-N and C-C bond coupling reaction and corresponding mechanistic investigation. He mainly used operando IR, in situ XANES/EXAFS as the tools to reveal the elementary reactions and discuss the active catalyst species in the coupling reactions. Another of his work is silver-mediated oxidative C-H/X-H functionalization / cyclization for the novel synthesis of heterocycles.

Then Mr. Hua Zhang presented his work with the title of “Carbonylation Reactions Involving CO Gas”. One focus of his work is the palladium-catalyzed oxidative carbonylation including the C­­–H carbonylation of heteroarenes and the double C­–H carbonylation of diary ethers. Another part of his work is the transition-metal-free alkoxycarbonylation of aryl halides. Due to his continuous interests on carbonylation reactions, the green and straightforward synthesis of highly important carbonyl frame works such as heteroaryl esters and xanthones derivatives has been achieved by the novel developed carbonylation reactions.

After the presentation, Chuan He and Hua Zhang answered the questions asked by the dissertation committee members and students.