Generation and trapping of nitrosocarbonyl intermediates

MG Memeo, P Quadrelli - Chemical reviews, 2017 - ACS Publications
The nitrosocarbonyls (R–CONO) are highly reactive species and remarkable intermediates
toward different synthetic targets. This review will cover a research area whose impact in …

Chemo-and stereoselective transition-metal-free amination of amides with azides

V Tona, A de la Torre, M Padmanaban… - Journal of the …, 2016 - ACS Publications
The synthesis of α-amino carbonyl/carboxyl compounds is a contemporary challenge in
organic synthesis. Herein, we present a stereoselective α-amination of amides employing …

Chain Walking as a Strategy for Iridium-Catalyzed Migratory Amidation of Alkenyl Alcohols to Access α-Amino Ketones

Y Hwang, SB Baek, D Kim, S Chang - Journal of the American …, 2022 - ACS Publications
Catalytic carbon–nitrogen bond formation in hydrocarbons is an appealing synthetic tool to
access valuable nitrogen-containing compounds. Although a number of synthetic …

Direct catalytic chemoselective α-amination of acylpyrazoles: A concise route to unnatural α-amino acid derivatives

K Tokumasu, R Yazaki, T Ohshima - Journal of the American …, 2016 - ACS Publications
A direct copper-catalyzed highly chemoselective α-amination is described. Acylpyrazole
proved to be a highly efficient enolate precursor of a carboxylic acid oxidation state …

Modular tuning of electrophilic reactivity of iridium nitrenoids for the intermolecular selective α-amidation of β-keto esters

M Lee, H Jung, D Kim, JW Park… - Journal of the American …, 2020 - ACS Publications
We report herein an Ir-catalyzed intermolecular amino group transfer to β-keto esters
(amides) to access α-aminocarbonyl products with excellent chemoselectivity. The key …

Asymmetric allylation by chiral organocatalyst‐promoted formal hetero‐Ene reactions of alkylgold intermediates

G Dong, M Bao, X Xie, S Jia, W Hu… - Angewandte Chemie …, 2021 - Wiley Online Library
An unprecedented catalytic asymmetric allylation of isatins and isatin‐derived ketimines is
reported enabled by a gold and chiral organocatalyst cooperative catalysis strategy. This …

Aerobic Oxidations in Asymmetric Synthesis: Catalytic Strategies and Recent Developments

D Kananovich, GZ Elek, M Lopp, V Borovkov - Frontiers in Chemistry, 2021 - frontiersin.org
Despite the remarkable advances in the area of asymmetric catalytic oxidations over the
past decades, the development of sustainable and environmentally benign enantioselective …

Copper‐Catalyzed Amination of Congested and Functionalized α‐Bromocarboxamides with either Amines or Ammonia at Room Temperature

S Ishida, K Takeuchi, N Taniyama… - Angewandte …, 2017 - Wiley Online Library
There are several reports on the synthesis of alkylamines, but most of the reported methods
are not suitable for the synthesis of hindered amines. In this research, we found that a …

Boron-catalyzed α-amination of carboxylic acids

T Morisawa, M Sawamura, Y Shimizu - Organic letters, 2019 - ACS Publications
A boron-catalyzed α-amination of simple carboxylic acids was developed. Catalytically
generated boron enolates of carboxylic acids reacted with an electrophilic aminating …

Connective synthesis of 5, 5-disubstituted hydantoins by tandem α-amination and α-arylation of silyl ketene acetals

RK Saunthwal, MT Cornall, R Abrams, JW Ward… - Chemical …, 2019 - pubs.rsc.org
5, 5-Disubstituted hydantoins, formally the cyclisation products of quaternary amino acids,
were formed connectively from simple ester-derived starting materials by a one-pot tandem …