Journal
CHEMICAL COMMUNICATIONS
Volume 52, Issue 8, Pages 1571-1574Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc08717a
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Funding
- Ministry of Education, Science and Sport, Republic of Slovenia
- Slovenian Research Agency [P1-0230, 430-168/2013/114, P1-0175]
- EN-FIST Centre of Excellence, Ljubljana, Slovenia
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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.
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