Results 71 to 80 of about 21,852 (266)

Pd(II)‐Catalyzed Strategies for the β‐Arylation of α‐Amino Acids: An Overview

Chemistry – A European Journal, EarlyView.
The graphical abstract summarizes the review “Pd(II)‐Catalyzed Strategies for the β‐Arylation of α‐Amino Acids: An Overview”, highlighting representative Pd(II)‐catalyzed methods for the β‐arylation of α‐amino acids. Key mechanistic features, substrate diversity, and synthetic relevance of these transformations are showcased. Abstract Metal‐catalyzed C─
Davide Illuminati, Claudio Trapella, Vinicio Zanirato, Virginia Cristofori, Anna Fantinati   +4 more
wiley   +1 more source

Preparation of benzolactams by Pd(II)-catalyzed carbonylation of N-unprotected arylethylamines [PDF]

, 2014
An unprecedented NH2-directed Pd(II)-catalytic carbonylation of quaternary aromatic α -amino esters to yield 6-membered 10 benzolactams has been developed. The reaction shows a strong bias to 6-membered lactams over 5-membered ones.
Albert Mach, Joan, Ariza Piquer, Xavier, García Gómez, Jordi, Granell Sanvicente, Jaime Ramón, López Barallobre, Blanca, Rodríguez Ramírez, Aleix, Santos, David   +6 more
core   +1 more source

Methyl on the Bridge: 2‐Methyl Propellane as Precursor for 1,3‐Substituted 2‐Methylated Bicyclo[1.1.1]Pentanes

Chemistry – A European Journal, EarlyView.
The synthesis of 2‐methyl propellane and its conversion to various 1,2‐ and 1,2,3‐di‐ and trisubstituted bicyclopentanes is reported. Abstract Bicyclo[1.1.1]pentanes (BCPs) have emerged as isosteric replacements for mono‐ and para‐substituted benzene rings in medicinal and materials applications, involving substitution at the BCP bridgehead (1,3 ...
Sean R. Verschaeve, Mariana Gomes Manso, Tibo Van Eeckhoorn, Mark E. Light, Bruno Linclau   +4 more
wiley   +1 more source

Simple preparation of new N-aryl-N-(3-indolmethyl) acetamides and their spectroscopic analysis

Universitas Scientiarum, 2009
To prepare new indolic molecules and characterize them by spectroscopic methods. Materials and methods: All reagentswere purchased from Aldrich, commercial grade.
José A. Henao, Josué S. Bello, Vladimir V. Kouznetsov, Diego F. Amado, Reinaldo Atencio   +4 more
doaj  

N,N-Dialkyl-2-phenylindol-3-ylglyoxylamides. A new class of Potent and Selective Ligands at the Peripheral Benzodiazepine Receptor. [PDF]

, 2004
We report the synthesis and the affinity data at both the peripheral (PBR) and the central benzodiazepine receptors of a series of N,N-dialkyl-2-phenylindol-3-ylglyoxylamide derivatives III, designed as conformationally constrained analogues of 2 ...
B. CHELLI, B. COSTA, C. MARTINI, E. ABIGNENTE DI FRASSELLO, E. NOVELLINO, F. DA SETTIMO, F. SIMORINI, G. GRECO, G. PRIMOFIORE, M.P. PATRIZI, S. TALIANI   +10 more
core   +1 more source

One‐Pot Transition‐Metal‐Free Methods for the Synthesis of All Three Bonds of the Alkyne's Triple Bond

Chemistry – A European Journal, EarlyView.
One‐pot transition‐metal‐free methods for the synthesis of all three bonds of the alkyne's triple bond are reviewed. After analysis of several named reactions and discussion of improvements, recent advances in the synthesis of alkynes are discussed. Each section contains a proposed reaction mechanism and analysis of the strengths and weaknesses of the ...
Eugene Kim, Yu Wu, Judith N. Currano, Jianyou Mao, Patrick J. Walsh   +4 more
wiley   +1 more source

Synthesizing polyethersulphone membranes with hybrid iron/nickel nanoparticles for dyes removal: An efficient biogenesis approach

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Industrial wastewater contamination by azo dyes poses a significant environmental challenge. This study reports the green synthesis of bimetallic iron/nickel (Fe/Ni) nanoparticles using moringa leaf extract, which acted as both a reducing and capping agent, and their incorporation into polyethersulphone (PES) membranes to produce eco‐friendly ...
Qusay A. Almajras, Ahmed K. Hassan, Dahiru Lawal, Mohammed Awad, Raed A. Al‐Juboori, Muhammad Irfan, Muhammad Rafiq, Qusay F. Alsalhy   +7 more
wiley   +1 more source

Stereodivergent Construction of Tertiary Fluorides in Vicinal Stereogenic Pairs by Allylic Substitution with Iridium and Copper Catalysts. [PDF]

, 2019
Although much effort has been spent on the enantioselective synthesis of tertiary alkyl fluorides, the synthesis of compounds containing such a stereogenic center within an array of stereocenters, particularly two vicinal ones, remains a synthetic ...
Hartwig, John F, He, Zhi-Tao, Jiang, Xingyu   +2 more
core  

Intramolecular Carbene C-H Insertion Reactions of 2-Diazo-2-sulfamoylacetamides

Molecules, 2019
The intramolecular C-H insertions of carbenes derived from 2-diazo-2-sulfamoylacetamides were studied. 2-Diazo-2-sulfamoylacetamides were first prepared from chloroacetyl chloride and secondary amines through acylation followed by sequential treatments ...
Chuqiang Que, Peipei Huang, Zhanhui Yang, Ning Chen, Jiaxi Xu   +4 more
doaj   +1 more source

Serotonin 5-HT4 Agonist Activity of a Series of Meso-Azanoradamantane Benzamides [PDF]

, 1997
A series of meso-amino(methyl)azanoradamantane benzamides has been prepared and evaluated for 5-HT4agonism activity in the rat tunica muscularis mucosae (TMM) assay.
Becker, Daniel, Gullikson, Gary, Nosal, Roger, Villamil, Clara I.   +3 more
core   +1 more source