title: Synthesis and characterization of para-pyridine linked NHC palladium complexes and their studies for the Heck-Mizoroki coupling reaction.
abstract: This paper describes the synthesis of 1-(pyridine-4-ylmethyl) NHC and their Pd(II) and Ag(I) complexes, which are fully characterized. Interestingly, we have also synthesized a Pd complex 3a-CO(3) using a more direct treatment of K(2)CO(3) with PdCl(2). 3a-CO(3) represents the first reported solid structure of a Pd η(2)-carbonato complex stabilized by an NHC framework. 3a-CO(3) can be easily converted to a PdCl(2) derivative by treating it with chloroform. We have found these palladium complexes mediate the Heck-Mizoroki coupling with a low catalyst loading. Furthermore, we also expand such catalytic manifold toward constructing fused polyaromatic substrates, a highly useful class of compounds in optoelectronic chemistry.
authors.affiliation: Institute of Chemistry, Academia Sinica, Nangang, Taipei, Taiwan, Republic of China.
authors.forename: Ya-Ming
authors.initials: YM
authors.lastname: Liu
authors.forename: Yi-Chun
authors.initials: YC
authors.lastname: Lin
authors.forename: Wen-Ching
authors.initials: WC
authors.lastname: Chen
authors.forename: Jen-Hao
authors.initials: JH
authors.lastname: Cheng
authors.forename: Yi-Lin
authors.initials: YL
authors.lastname: Chen
authors.forename: Glenn P A
authors.initials: GP
authors.lastname: Yap
authors.forename: Shih-Sheng
authors.initials: SS
authors.lastname: Sun
authors.forename: Tiow-Gan
authors.initials: TG
authors.lastname: Ong