122nd General Meeting of the KCS

Type Poster Presentation
Area Organic Chemistry
Room No. Grand Ballroom
Time 10월 18일 (목요일) 11:00~12:30
Code ORGN.P-87
Subject Mechanism of Palladium-Catalyzed C–N Coupling with DBU as a Base
Authors Seoung-Tae Kim, Mu-Hyun Baik*
Chemistry, Korea Advanced Institute of Science and Technology, Korea
Abstract In general, the Buchwald-Hartwig amination reaction employes strong, inorganic or insoluble bases to deprotonate less acidic amines albeit these bases expose innate limitations: i) reduce the functional group tolerance, ii) insoluble in a solvent, iii) air sensitive, and iv) can require higher Pd loadings. Recently, the Buchwald group reported a new Pd-catalyzed C-N cross-coupling reaction that can tolerate highly base-sensitive substrates by using organic-base. In this DFT study, the mechanism of Pd-catalyzed C–N cross-coupling reaction with organic-base, 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU), is explored. This study addresses the reason for the difficulty of using the organic-base and shed light on the importance of ligand bulkiness for the reaction.
E-mail seoungtae@kaist.ac.kr