1749-09-3Relevant academic research and scientific papers
Half-sandwich Ru(ii) arene complexes bearing benzimidazole ligands for theN-alkylation reaction of aniline with alcohols in a solvent-free medium
?i?ek, Metin,Gürbüz, Nevin,?zdemir, Nam?k,?zdemir, ?smail,?spir, Esin
, p. 11075 - 11085 (2021/07/02)
In this article, the directN-alkylation reactions of amines with alcohol derivatives using the borrowing hydrogen methodology have been investigated. For this purpose, a new series of half-sandwich ruthenium(ii) complexes bearing N-coordinated benzimidazole complexes have been synthesized and fully characterized by FT-IR,1H NMR and13C NMR spectroscopies. Additionally, the structures of the complexes2a-2ehave been characterized by X-ray crystallography. All new complexes were investigated for their catalytic activities in the alkylation reaction of amines with alcohol derivatives. It was found that alkylation reactions in a solvent-free medium are efficient and selective.
A new kind of bismuth organic complex and its preparation method and catalytic applications (by machine translation)
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Paragraph 0188; 0189; 0190; 0192; 0193; 0197; 0201; 0205, (2019/01/24)
This invention is a novel bismuth organic complex and its preparation method and catalytic applications. Characterized in that in order to commonly used organic solvent as a reaction solvent, in order to organic bismuth ion nitrogen atom ligand diphenyl [...] and cheap and easy to obtain aryl boric acid as the raw material, the nickel acetate catalytic reaction, high yield, high selectivity to obtain a novel bismuth organic (III) complex catalyst (I). The good stability of the catalyst, can be recovered, and in the catalytic aryl alkynes and aniline derivatives hydroamination reaction demonstrate excellent catalytic activity. This method has the advantages of low cost, high yield, simple and convenient operation, no pollution and the like, for the realization of its industrial production has certain feasibility. (by machine translation)
Synthesis of substituted oxindoles from α-chloroacetanilides via palladium-catalyzed C - H functionalization
Hennessy, Edward J.,Buchwald, Stephen L.
, p. 12084 - 12085 (2007/10/03)
A novel method for the synthesis of oxindoles is described. In the presence of catalytic palladium acetate and 2-(di-tert-butylphosphino)biphenyl, α-chloroacetanilides are converted to oxindoles in good to excellent yields with high functional group compatibility using triethylamine as a stoichiometric base. The cyclization is highly regioselective, obviating the need for prefunctionalized arenes. Plausible mechanistic pathways for the reaction are discussed. Copyright
