261907-79-3Relevant academic research and scientific papers
NNB-type tridentate boryl ligands enabling a highly active iridium catalyst for C–H borylation
Ding, Siyi,Wang, Linghua,Miao, Zongcheng,Li, Pengfei
, (2019/04/30)
Boryl ligands play a very important role in catalysis because of their very high electron-donating property. In this paper, NNB-type boryl anions were designed as tridentate ligands to promote aryl C–H borylation. In combination with [IrCl(COD)]2/su
N,B-bidentate boryl ligand-supported iridium catalyst for efficient functional-group-directed C-H borylation
Wang, Guanghui,Liu, Li,Wang, Hong,Ding, You-Song,Zhou, Jing,Mao, Shuai,Li, Pengfei
supporting information, p. 91 - 94 (2017/05/16)
Convenient silylborane precursors for introducing N,B-bidentate boryl ligands onto transition metals were designed, prepared, and employed in ready formation of irdium(IIl) complexes via Si-B oxidative addition. A practical, efficient catalytic ortho-borylation reaction of arenes with a broad range of directing groups was developed using an in situ generated catalyst from the silylborane preligand 3c and [IrCl(COD)]2.
New generation of organosilyl radicals by photochemically induced homolytic cleavage of silicon-boron bonds
Matsumoto, Akira,Ito, Yoshihiko
, p. 5707 - 5711 (2007/10/03)
Unlike bis(diethylamino)organosilylboranes, bis(diisopropylamino)organosilylboranes, which have UV absorption at longer wavelength than 300 nm, undergo photolysis to afford pairs of an organosilyl radical and a bis(diisopropylamino)boryl radical by homolytic scission of the silicon-boron bonds. Generation of organosilyl radical and organoboryl radical was confirmed by trapping experiments using TEMPO (2,2,6,6-tetramethylpiperidine N-oxyl). The organosilyl radical thus generated induces not only silylation of mono-olefins and silylative cyclization of dienes but also polymerization to afford polymers bearing organosilyl termini. On the other hand, the bis(diisopropylamino)boryl radical generated is not incorporated into the olefin adducts.
