Potential antiatherosclerotic agents. 2. (Aralkylamino)- and (alkylamino)benzoic acid analogs of cetaben
作者:J. Donald Albright、Vern G. DeVries、Elwood E. Largis、Thomas G. Miner、Marvin F. Reich、Sheldon A. Schaffer、Robert G. Shepherd、Janis Upeslacis
DOI:10.1021/jm00364a009
日期:1983.10
the corresponding esters and sodium salts, are described. The compounds were evaluated in vivo in rats for serum sterol and triglyceride lowering activity and in vitro for activity in inhibiting the principle cholesterol-esterifying enzyme of the arterial wall, fatty acyl-CoA:cholesterol acyltransferase (ACAT). Based on a combination of these two activities, cataben sodium (150) was selected for development
Sodium Butylated Hydroxytoluene: A Functional Group Tolerant, Eco‐Friendly Base for Solvent‐Free, Pd‐Catalysed Amination
作者:Volodymyr Semeniuchenko、Wilfried M. Braje、Michael G. Organ
DOI:10.1002/chem.202101617
日期:2021.9
NaBHT (sodium 2,6-di-tert-butyl-4-methylphenolate), a strong, but hindered and lipophilic base, has been effectively paired with similarly lipophilic, high-reactivity Pd-NHC (N-heterocyclic carbene) catalysts to produce an ideal combination for performing solvent-free (melt) cross-coupling amination. The mild nucleophilicity of NaBHT, coupled with the anti-oxidant properties of its conjugate acid byproduct
Palladium-Catalyzed Amination of Aryl and Heteroaryl Tosylates at Room Temperature
作者:Tokutaro Ogata、John F. Hartwig
DOI:10.1021/ja805810p
日期:2008.10.22
Mild palladium-catalyzed aminations of aryltosylates and the first aminations of heteroaryltosylates are described. In the presence of the combination of L2Pd(0) (L = P(o-tol)3) and the hindered Josiphos ligand CyPF-t-Bu, a variety of primary alkylamines and arylamines react with both aryl and heteroaryltosylates at room temperature to form the corresponding secondary arylamines in high yields with
Preparation of Aryl−Alkylamines via Electrophilic Amination of Functionalized Arylazo Tosylates with Alkylzinc Reagents
作者:Pradipta Sinha、Christiane C. Kofink、Paul Knochel
DOI:10.1021/ol061303m
日期:2006.8.1
[reaction: see text] A new electrophilicamination reaction of functionalized arylazo tosylates with alkylzinc halides or dialkylzinc reagents in THF leads to the corresponding hydrazines. A facile cleavage of the N-N bond is achieved using Raney nickel in refluxing ethanol, leading to substituted secondary aryl-alkylamines in 45-79% yield.