Room temperature N-arylation of amino acids and peptides using copper(<scp>i</scp>) and β-diketone
作者:Krishna K. Sharma、Swagat Sharma、Anurag Kudwal、Rahul Jain
DOI:10.1039/c5ob00288e
日期:——
A mild and efficient method for the N-arylation of zwitterionic amino acids, amino acid esters and peptides is described. The procedure provides the first roomtemperature synthesis of N-arylated amino acids and peptides using CuI as a catalyst, diketone as a ligand, and aryliodides as coupling partners. The method is equally applicable for using relatively inexpensive aryl bromides as coupling partners
Copper-catalyzed N-(hetero)arylation of amino acids in water
作者:Krishna K. Sharma、Meenakshi Mandloi、Neha Rai、Rahul Jain
DOI:10.1039/c6ra23364c
日期:——
An environmentally benign, mild, cost-effective and gram-scalable copper-catalyzed method for the N-(hetero)arylation of zwitterionic natural and unnatural amino acids using 2-isobutyrylcyclohexanone as a β-diketone ligand and aryl bromides as coupling partners in water for 50 min at 90 °C under microwave irradiation is reported. Electronically and sterically diverse aryl coupling partners were inserted
CuBr/<i>rac</i>-BINOL-Catalyzed <i>N</i>-Arylations of Aliphatic Amines at Room Temperature
作者:Deshou Jiang、Hua Fu、Yuyang Jiang、Yufen Zhao
DOI:10.1021/jo062060e
日期:2007.1.1
We have developed an efficient and readily available catalyst system CuBr/racemic BINOL (1,1'-binaphthyl-2,2'-diol) that catalyzes N-arylation of aliphatic amines at room temperature, and this inexpensive catalyst system is of high selectivity and tolerance toward various functional groups in the substrates.