This paper describes a simple and efficient protocol for the N-alkylation of arylamines with benzyl alcohols using tantalum(V) fluoride as the catalyst.
本文描述了一种使用五氟化钽作为催化剂,简单而高效地利用苄醇对芳香胺进行N-烷基化的方法。
Half-sandwich Ru(<scp>ii</scp>) arene complexes bearing benzimidazole ligands for the <i>N</i>-alkylation reaction of aniline with alcohols in a solvent-free medium
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 and 13C NMR spectroscopies. Additionally, the structures of the complexes 2a–2e have been characterized by X-ray crystallography. All new complexes were investigated for their catalytic activities in the alkylation
在本文中,使用借氢方法研究了胺与醇衍生物的直接N-烷基化反应。为此,合成了一系列新的带有 N 配位苯并咪唑配合物的半夹心钌 ( II ) 配合物,并通过 FT-IR、1 H NMR 和13 C NMR 光谱进行了充分表征。此外,配合物2a-2e的结构已通过 X 射线晶体学表征。研究了所有新配合物在胺与醇衍生物的烷基化反应中的催化活性。发现在无溶剂介质中的烷基化反应是有效且有选择性的。
Selective reductive amination of aldehydes from nitro compounds catalyzed by molybdenum sulfide clusters
amines are selectively obtained from low value starting materials using hydrogen and a non-noble metal-based catalyst. The reductive amination of aldehydes from nitroarenes or nitroalkanes is efficiently catalyzed by a well-defined diamino molybdenum sulfide cluster in a one-pot homogeneous reaction. The integrity of the molecular cluster catalyst is preserved along the process.
Synthesis of Substituted Oxindoles from α-Chloroacetanilides via Palladium-Catalyzed C−H Functionalization
作者:Edward J. Hennessy、Stephen L. Buchwald
DOI:10.1021/ja037546g
日期:2003.10.1
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.