세미나

DEPARTMENT OF CHEMISTRY, SEOUL NATIONAL UNIVERSITY.

Biomedical Applications of the Pd-catalyzed Cross-coupling Reactions

2017-08-28l 조회수 647
소속 :
연사 : Prof. Hong Geun Lee(SNU)
일시 : 2017-11-16 16:30 ~
장소 : 500동, 목암홀
Part I
Based on mechanism-driven reaction design, a Pd-catalyzed nucleophilic fluorination of aryl bromides and iodides has been developed. The method exhibits a broad substrate scope, especially with respect to nitrogen-containing heteroaryl bromides. The use of Pd(0) species [L•Pd(1,5-cyclooctadiene)Pd•L] (L = Ad2ArP) as a precatalyst, a facilitated ligand modification process, and an additive effect of KF was shown to be critical to the success of the reaction.

Part II
The Pd-catalyzed cross-coupling reactions have been applied to synthesize radiotracers for positron emission tomography and bioconjugates. The enabling technology has successfully mediated C–C and C–N bond-forming reactions under highly specialized settings. Key to the success was the easy and expeditious preparation of the stable oxidative addition complexes, which has greatly simplified the overall process.