55673-53-5Relevant articles and documents
Development of unique dianionic Ir(III) CCC pincer complexes with a favourable spirocyclic NHC framework
Yan, Zhi-Bo,Dai, Kun-Long,Yang, Bin-Miao,Li, Zi-Hao,Tu, Yong-Qiang,Zhang, Fu-Min,Zhang, Xiao-Ming,Peng, Meng,Chen, Qi-Long,Jing, Ze-Ran
, p. 1761 - 1766 (2020/10/29)
A new type of dianionic Ir(III) CCC pincer complexes (SNHC-Ir, 1a-1c) is successfully designed and synthesized by developing a one-step methodology, which involves an initial coordination of Ir(I) with the NHC and subsequent metallation of double sp2C- H bonds. This method is considerably useful over those reported by using strong coordination ligand or carbonic anion exchange, and would provide an alternative efficient template of organometallics synthesis. Experimental and density functional theory (DFT) calculation results indicate that the spirocyclic framework is a favourable factor for the facile formation and stabilization of these complexes. Primary investigation shows that chloride 1b can well catalyze homo and hetero addition of styrene derivatives and remote olefin isomerization, which represents the first catalytic application of the dianionic CCC pincer complexes.
C-H alkenylation of azoles with enols and esters by nickel catalysis
Meng, Lingkui,Kamada, Yuko,Muto, Kei,Yamaguchi, Junichiro,Itami, Kenichiro
supporting information, p. 10048 - 10051 (2013/10/01)
Rather u(Ni)que: Two new C-H alkenylation reactions, that is C-H/Ci£O alkenylation and decarbonylative C-H alkenylation, of azoles are uniquely catalyzed by Ni/dcype. These azole alkenylation reactions are successfully applied to the convergent formal synthesis of siphonazoleB.
One-pot ester synthesis from allyl and benzyl halides and alcohols by palladium-catalyzed carbonylation
Tommasi, Sara,Perrone, Serena,Rosato, Francesca,Salomone, Antonio,Troisi, Luiginio
experimental part, p. 423 - 430 (2012/03/11)
A mild and efficient one-pot synthesis of esters based on the Pd-catalyzed alkoxy- and aryloxycarbonylation of allylic and benzylic halides is described. The methodology has been applied to primary, secondary, and tertiary alcohols as well as to phenol derivatives. The O-protection of some biologically relevant molecules is also reported. Georg Thieme Verlag Stuttgart New York.