NHC Ligands with a Secondary Pyrimidyl Donor for Electron-Rich Palladium(0) Complexes

被引：56

作者：

Warsink, Stefan ^{[1
]}

Chang, I-Hsin ^{[2
]}

Weigand, Jan J. ^{[3
]}

Hauwert, Peter ^{[1
]}

Chen, Jwu-Ting ^{[2
]}

Elsevier, Cornelis J. ^{[1
]}

机构：

[1] Univ Amsterdam, Vant Hoff Inst Mol Sci, NL-1090 GD Amsterdam, Netherlands

[2] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan

[3] Univ Munster, Inst Anorgan & Analyt Chem, D-4400 Munster, Germany

来源：

ORGANOMETALLICS | 2010年 / 29卷 / 20期

关键词：

N-HETEROCYCLIC CARBENES; COORDINATION CHEMISTRY; STRUCTURAL-CHARACTERIZATION; ORGANOMETALLIC CATALYSIS; SILVER(I) COMPLEXES; HYDROGENATION; NICKEL; AMINES; AG(I); TETRA;

D O I：

10.1021/om100670u

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Several (N-2-pyrimidyl-NHC)-palladium(0) complexes have been synthesized in very high yields and purities by transmetalation from the related silver(I) complexes with Pd-0(tBuDAB)(ma). The coordination behavior of the heteroditopic ligands was analyzed, and the structure of their complexes was confirmed by NMR and X-ray diffraction studies. The complexes are active catalysts for the transfer hydrogenation of alkynes to Z-alkenes, with activity and selectivity depending on the pyrimidine substituents and the NHC nitrogen substituent. Selectivities toward the Z-alkene as high as 97% were observed.

引用

页码：4555 / 4561

页数：7

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