[EN] THIENOPYRROLE COMPOUNDS AND USES THEREOF AS INHIBITORS OF OPLOPHORUS-DERIVED LUCIFERASES [FR] COMPOSÉS DE THIÉNOPYRROLE ET LEURS UTILISATIONS À TITRE D'INHIBITEURS DE LUCIFÉRASES DÉRIVÉES D'OPLOPHORUS
Discovery of N-(Naphthalen-1-yl)-N′-alkyl Oxalamide Ligands Enables Cu-Catalyzed Aryl Amination with High Turnovers
摘要:
A Class of N-(naphthalen-1-yl)-N'-alkyl oxalamides have been proven to be powerful ligands, making a coupling reaction of (hetero)aryl iodides with primary amines proceed at 50 degrees C with only 0.01 mol % of Cu2O and ligand as well as a coupling reaction of (hetero)aryl bromides with primary amines and ammonia at 80 degrees C with only 0.1 mol % of Cu2O and ligand. A wide range of coupling partners work well under these conditions thereby providing an easy to operate method for preparing (hetero)atyl amines.
2,6-Diisopropoxyphenyl(dicyclohexyl)phosphine: A New Ligand for Palladium-Catalyzed Amination Reactions of Aryl Chlorides with Potassium Hydroxide as the Base
作者:Bo Lü、Pengbin Li、Chunling Fu、Liqin Xue、Zhenyang Lin、Shengming Ma
DOI:10.1002/adsc.201000349
日期:2011.1.10
developed for the palladium‐catalyzed amination reaction of arylchlorides in moderate to high yields with the cheap and easily available potassium hydroxide as the base. The reaction enjoys a wide scope, lower reaction temperatures, shorter reaction times, high yields, and low catalyst loading when compared to some of same amination reactions reported in the literature. Based on a kineticstudy, 31P NMR measurements
An Air-Stable Nickel(0) Phosphite Precatalyst for Primary Alkylamine C-N Cross-Coupling Reactions
作者:Sven S. Kampmann、Brian W. Skelton、Duncan A. Wild、George A. Koutsantonis、Scott G. Stewart
DOI:10.1002/ejoc.201500734
日期:2015.9
preparation of a new air-stablenickelphosphite based catalyst for unique C–N bond forming processes. Specifically, (BINAP)Ni[P(OPh)3]2, is presented as an effective catalyst for a range of amination reactions between aryl halides and primaryalkylamines. The results are supported by relevant kinetic studies, DFT calculations and a catalytic cycle indicating possible reaction intermediates.
Direct access to<i>N</i>-alkylated amines and imines<i>via</i>acceptorless dehydrogenative coupling catalyzed by a cobalt(<scp>ii</scp>)-NNN pincer complex
作者:Siba P. Midya、Jayaraman Pitchaimani、Vinod G. Landge、Vedichi Madhu、Ekambaram Balaraman
DOI:10.1039/c8cy00859k
日期:——
A simple, phosphine-free Co(II)-NNN pincercomplexcatalyzeddirect N-alkylation of anilines with alcohols via hydrogen auto-transfer (HA) and selective acceptorless dehydrogenativecoupling (ADC) of benzylamines with alcohols affording imines with the liberation of molecular hydrogen and water is reported.
Nickel-on-Charcoal-Catalyzed Aromatic Aminations and Kumada Couplings: Mechanistic and Synthetic Aspects
作者:Stefan Tasler、Bruce H. Lipshutz
DOI:10.1021/jo020297e
日期:2003.2.1
nickel-on-charcoal (Ni/C) have been revised, making them simpler and more time efficient. For both types of reactions, reduction of the catalyst precursor Ni(II)/C using n-BuLi prior to addition of a substrate can be avoided. Instead, in amination reactions, the amine in combination with lithium tert-butoxide was found to convert Ni(II)/C to active Ni(0). For Kumada couplings, direct reduction of Ni(II)/C by the Grignard
Novel 1-phenylalkyl-3-phenylurea derivatives represented by the following formula (I):
wherein R¹ is an alkyl group of 1 to 8 carbon atoms, an alkoxy group of 1 to 5 carbon atoms or a halogen atom, R² is an alkyl group of 1 to 15 carbon atoms, each of R³ and R⁴ is independently an alkyl group of 1 to 5 carbon atoms, m is an integer of 1 to 3, and n is 0 or 1, are provided.
The compounds are potent in reducing the cholesterol level in serum, and useful for treating hyperlipemia and atherosclerosis.