A mesoionic bis(Py-tzNHC) palladium( II) complex catalyses "green" Sonogashira reaction through an unprecedented mechanism

被引：58

作者：

Gazvoda, Martin ^{[1
]}

Virant, Miha ^{[1
]}

Pevec, Andrej ^{[1
]}

Urankar, Damijana ^{[1
]}

Bolje, Aljosa ^{[1
]}

Kocevar, Marijan ^{[1
]}

Kosmrlj, Janez ^{[1
]}

机构：

[1] Univ Ljubljana, Fac Chem & Chem Technol, Vecna Pot 113, SI-1000 Ljubljana, Slovenia

来源：

CHEMICAL COMMUNICATIONS | 2016年 / 52卷 / 08期

关键词：

N-HETEROCYCLIC CARBENES; IONIZATION MASS-SPECTROMETRY; CROSS-COUPLING REACTIONS; OXIDATIVE ADDITION; LIGANDS SYNTHESIS; METAL-COMPLEXES; MIZOROKI-HECK; NHC LIGANDS; SUZUKI; 1,2,3-TRIAZOLYLIDENES;

D O I：

10.1039/c5cc08717a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel bis(pyridyl-functionalized 1,2,3-triazol-5-ylidene)-palladium(II) complex [Pd(Py-tzNHC)(2)](2+) catalyses the copper-, amine-, phosphine-, and additive-free aerobic Sonogashira alkynylation of (hetero) aryl bromides in water as the only reaction solvent. The catalysis proceeds along two connected Pd-cycles with homogeneous bis-carbene Pd-0 and Pd-II species, as demonstrated by electrospray ionization mass spectrometry.

引用

页码：1571 / 1574

页数：4

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