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Zhengzhou, China

Mu B.,Zhengzhou University | Li J.,Zhengzhou University | Li J.,Tetranov Biopharm LLC | Han Z.,Zhengzhou University | Wu Y.,Zhengzhou University
Journal of Organometallic Chemistry

The new Na 2Pd 2Cl 6 complex with ethyl calix[4]aryl acetate 2 was prepared simply and efficiently by the extraction of sodium ion from Na 2PdCl 4 aqueous solution with ethyl calix[4]aryl acetate. The structure of complex 2 could be verified by X-ray single crystal structure determination. The complex 2 was tested as catalyst in Suzuki-Miyaura cross-coupling reaction at room temperature in CH 3OH/H 2O medium under ambient conditions. Using 0.2 mol% of the complex 2 in the presence of K 2CO 3 as base offered excellent yields in the reaction of activated and non-activated aryl bromides with aryl boronic acids within 10 min. The key for achieving a very rapid and almost quantitative coupling is probably the use of ethyl calix[4]aryl acetate possessing extended hydrophobic host cavities and surface active properties. In addition, it was found that both solvent and base had a fundamental influence on the reaction. © 2011 Elsevier B.V. All rights reserved. Source

Zhao G.,Zhengzhou University | Wang Z.,Zhengzhou University | Wang R.,Zhengzhou University | Li J.,Tetranov Biopharm LLC | And 2 more authors.
Tetrahedron Letters

The research provides a novel approach for producing diarylmethane derivatives using CB[7]-NaCl-PdCl2catalyzed Suzuki cross-coupling reaction of benzyl chloride derivatives and arylboronic acids in ethanol aqueous solution. © 2014 Elsevier Ltd. All rights reserved. Source

Li X.,Zhengzhou University | Li X.,Tetranov Biopharm LLC | Zou D.,Zhengzhou University | Zou D.,Tetranov Biopharm LLC | And 8 more authors.
Chemical Communications

The novel palladium-catalyzed decarboxylative cross-coupling reactions of 2-picolinic acid with aryl and heteroaryl bromides including benzenes, naphthalenes, pyridines and quinolines for C-C bond formation have been successfully achieved. This journal is © 2013 The Royal Society of Chemistry. Source

Leng F.,Zhengzhou University | Wang Y.,Zhengzhou University | Li H.,Zhengzhou University | Li J.,Tetranov Biopharm LLC | And 5 more authors.
Chemical Communications

This research provides a novel approach for introducing a CF 3CH2 group onto aromatic rings using Pd(OAc) 2/palladacycle as a catalyst for the Suzuki cross-coupling reaction of CF3CH2OTs (OTs = 4-methylbenzene sulfonate) with arylboronic acids. © 2013 The Royal Society of Chemistry. Source

Guo S.,Zhengzhou University | Guo S.,Tetranov Biopharm LLC | Wang Y.,Zhengzhou University | Wang Y.,Tetranov Biopharm LLC | And 8 more authors.
Tetrahedron Letters

Both nitrile and arylamino groups containing pyridine derivatives are synthesized from commercially available nitrile substituted pyridyl chlorides via a palladium-BINAP catalyst (the second generation catalyst for the amination) in moderate to good yields. The mild conditions permit the presence of base sensitive functional groups. Noteably, the halogen atoms linked to the aromatic ring were maintained in the structures of the products under the amination reaction conditions. © 2013 Elsevier Ltd. All rights reserved. Source

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