Copper-Catalyzed N-tert-Butylation of Aromatic Amines under Mild Conditions Using tert-Butyl 2,2,2-Trichloroacetimidate
作者:John Cran、Dinesh Vidhani、Marie Krafft
DOI:10.1055/s-0033-1339107
日期:——
A variety of aromaticamines have been found to expediently undergo copper-catalyzed N-tert-butylation in the presence of tert-butyl 2,2,2-trichloroactimidate at room temperature.
Conjugated imines and iminium salts as versatile acceptors of nucleophiles
作者:Makoto Shimizu、Iwao Hachiya、Isao Mizota
DOI:10.1039/b814930e
日期:——
development of synthetic methodologies where nucleophilicaddition reactions to imino carbons are utilized in crucial steps. This article summarizes double nucleophilicaddition reactions with alpha,beta-unsaturated aldimines, addition reactions using alkynyl imines, "umpoled" reactions of alpha-imino esters, and the use of iminium salts as reactive electrophiles.
Direct Aryl C−H Amination with Primary Amines Using Organic Photoredox Catalysis
作者:Kaila A. Margrey、Alison Levens、David A. Nicewicz
DOI:10.1002/anie.201709523
日期:2017.12.4
photoredox catalyst under an aerobic atmosphere. A wide variety of primary amines, including amino acids and more complex amines are competent coupling partners. Various electron‐rich aromatics and heteroaromatics are useful scaffolds in this reaction, as are complex, biologically active arenes. We also describe the ability to functionalize arenes that are not oxidized by an acridinium catalyst, such as
Titanium-Mediated Amination of Grignard Reagents Using Primary and Secondary Amines
作者:Timothy J. Barker、Elizabeth R. Jarvo
DOI:10.1002/anie.201103700
日期:2011.8.29
N‐chlorosuccinimide (NCS) was employed as the oxidant in the synthesis of aniline derivatives using the title transformation (see scheme). Functionalization was well tolerated on both the amine and Grignard reagent. An androgen receptor agonist and several analogues were synthesized to demonstrate the utility of this method.