Stereoselective synthesis and applications of spirocyclic oxindoles

AJ Boddy, JA Bull - Organic Chemistry Frontiers, 2021 - pubs.rsc.org
The development of novel synthetic strategies to form new chemical entities in a
stereoselective manner is an ongoing significant objective in organic and medicinal …

N-Heterocyclic Carbene Catalysis via the α,β-Unsaturated Acyl Azolium

C Zhang, JF Hooper, DW Lupton - ACS Catalysis, 2017 - ACS Publications
First reported less than a decade ago, the α, β-unsaturated acyl azolium has emerged as a
central reactive intermediate for reaction discovery using N-heterocyclic carbene catalysis …

Desymmetrization of N-Cbz glutarimides through N-heterocyclic carbene organocatalysis

Z Hu, C Wei, Q Shi, X Hong, J Liu, X Zhou… - Nature …, 2022 - nature.com
Over the past decade, the catalysis of N-heterocyclic carbenes has achieved significant
advances. In this area, aldehydes, enals, and esters, are commonly employed as starting …

Organocatalytic asymmetric N-sulfonyl amide CN bond activation to access axially chiral biaryl amino acids

G Wang, Q Shi, W Hu, T Chen, Y Guo, Z Hu… - Nature …, 2020 - nature.com
Amides are among the most fundamental functional groups and essential structural units,
widely used in chemistry, biochemistry and material science. Amide synthesis and …

Carbene-catalyzed aerobic oxidation of isoquinolinium salts: efficient synthesis of isoquinolinones

G Wang, W Hu, Z Hu, Y Zhang, W Yao, L Li, Z Fu… - Green …, 2018 - pubs.rsc.org
A mild and environmentally friendly carbene-catalyzed aerobic oxidation of isoquinolinium
salts was successfully realized. Accordingly, a diverse set of isoquinolinones and …

The Combination of Lewis Acid with N-Heterocyclic Carbene (NHC) Catalysis

Q Jia, Y Li, Y Lin, Q Ren - Catalysts, 2019 - mdpi.com
In the last ten years, the combination of Lewis acid with N-heterocyclic carbene (NHC)
catalysis has emerged as a powerful strategy in a variety of important asymmetric synthesis …

Access to enantioenriched organosilanes from Enals and β‐silyl enones: carbene organocatalysis

Y Zhang, J Huang, Y Guo, L Li, Z Fu… - Angewandte …, 2018 - Wiley Online Library
Herein, an efficient route to enantioenriched organosilanes, containing two consecutive
stereogenic centers, from enals and β‐silyl enones under carbene organocatalysis is …

N-Heterocyclic Carbene-Catalyzed Enantioselective [3 + 2] Annulation of Enals with Vinyl Ketones

T Azaz, H Mourya, V Singh, B Ram… - The Journal of Organic …, 2023 - ACS Publications
An unprecedented N-heterocyclic carbene (NHC)-catalyzed enantioselective [3+ 2]
annulation of enals with vinyl ketones has been achieved. Unlike chalcones, the β …

Copper-catalyzed N–O cleavage of α, β-unsaturated ketoxime acetates toward structurally diverse pyridines

L Zhang, J Duan, G Xu, X Ding, Y Mao… - The Journal of …, 2020 - ACS Publications
The copper-catalyzed [4+ 2] annulation of α, β-unsaturated ketoxime acetates with 1, 3-
dicarbonyl compounds for the synthesis of three classes of structurally diverse pyridines has …

Facile synthesis of 2, 2-diacyl spirocyclohexanones via an N-heterocyclic carbene-catalyzed formal [3C+ 3C] annulation

Y Gao, D Liu, Z Fu, W Huang - Organic letters, 2019 - ACS Publications
A novel strategy for the construction of 2, 2-diacyl spirocyclohexanones 3 has been
demonstrated on the basis of an NHC-catalyzed [3C+ 3C] annulation of potassium 2-oxo-3 …