NHC Ligands with a Secondary Pyrimidyl Donor for Electron-Rich Palladium(0) Complexes
作者:Stefan Warsink、I-Hsin Chang、Jan J. Weigand、Peter Hauwert、Jwu-Ting Chen、Cornelis J. Elsevier
DOI:10.1021/om100670u
日期:2010.10.25
palladium(0) complexes have been synthesized in very high yields and purities by transmetalation from the related silver(I) complexes with Pd0(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
Synthesis, crystal structures, and catalytic activities of palladium imidazole complexes formed by 2-hydroxyethyl group cleavage
作者:Chen Xu、Zhen Li、Lu-Meng Duan、Zhi-Qiang Wang、Wei-Jun Fu、Xin-Qi Hao、Mao-Ping Song
DOI:10.1007/s11243-012-9598-z
日期:2012.5
analogous bis(N-methylimidazole) palladium complex 4 has also been synthesized by the above method. Compounds 1–4 were characterized by elemental analysis, IR, and 1H NMR. Additionally, their crystalstructures have been determined by X-ray diffraction. Complexes 3 and 4 were found to be efficient catalysts for the Suzuki reaction.
A series of novel D–π–A type two-photonabsorption (2PA) imidazole-pyrimidine derivatives (EX-1∼EX-4) have been synthesized and characterized, with EX-1 was crystallography confirmed. Based on systematic photophysical investigations, the structure–propertyrelationships can be drawn as follows: (1) Both theoretical and experimental studies indicated that the different donor groups have large influences
A Half Sandwich Ruthenium(II) Complex with<i>N</i>-4,6-Dimethyl-2-pyrimidinylimidazole: Synthesis, Crystal Structure and Application in<i>N</i>-Alkylation of Amines with Alcohols
作者:Hong-Mei Li、Chen Xu、Zhi-Qiang Wang、Wei-Jun Fu
DOI:10.1002/bkcs.10484
日期:2015.10
One Step Conversion of Heteroaromatic-<i>N</i>-Oxides to Imidazolo-Heteroarenes
作者:John M. Keith
DOI:10.1021/jo702038g
日期:2008.1.1
[GRAPHICS]Various pyridine-, quinoline-, isoquinoline-, and pyrimidine-N-oxides were converted to their corresponding alpha-imida-zoloheteroarenes in good yield by treatment with. sulfuryl diimidazole in nonpolar solvents at elevated temperatures.