title: Synthesis and isolation of an acyclic tridentate bis(pyridine)carbodicarbene and studies on its structural implications and reactivities.
abstract: The simple synthetic development of acyclic pincer bis(pyridine)carbodicarbene is depicted herein. Presented is the first isolated structural pincer carbodicarbene with a C-C-C angle of 143°, larger than the monodentate framework. More importantly, theoretical analysis showed that this carbodicarbene embodies a more allene-like character. Palladium complexes supported by this pincer ligand are active catalysts for Heck-Mizoroki and Suzuki-Miyaura coupling reactions.
authors.affiliation: Department of Chemistry, National Taiwan University, Taipei, Taiwan (Republic of China).
authors.forename: Yu-Chen
authors.initials: YC
authors.lastname: Hsu
authors.forename: Jiun-Shian
authors.initials: JS
authors.lastname: Shen
authors.forename: Bo-Chao
authors.initials: BC
authors.lastname: Lin
authors.forename: Wen-Ching
authors.initials: WC
authors.lastname: Chen
authors.forename: Yi-Tsu
authors.initials: YT
authors.lastname: Chan
authors.forename: Wei-Min
authors.initials: WM
authors.lastname: Ching
authors.forename: Glenn P A
authors.initials: GP
authors.lastname: Yap
authors.forename: Chao-Ping
authors.initials: CP
authors.lastname: Hsu
authors.forename: Tiow-Gan
authors.initials: TG
authors.lastname: Ong
keywords: CC coupling; carbenes; carbodicarbenes; ligand design; palladium