Recent developments in catalytic asymmetric inverse-electron-demand Diels–Alder reaction

X Jiang, R Wang - Chemical Reviews, 2013 - ACS Publications
In general, DA reactions can be classified into two types of suprafacial [π4s+ π2s]
cycloadditions:(i) the normal and (ii) inverse-electron-demand DA reactions (Scheme 1) …

Advances in rosin-based chemicals: the latest recipes, applications and future trends

S Kugler, P Ossowicz, K Malarczyk-Matusiak… - Molecules, 2019 - mdpi.com
A comprehensive review of the publications about rosin-based chemicals has been
compiled. Rosin, or colophony, is a natural, abundant, cheap and non-toxic raw material …

Enantioselective Michael/Cyclization Reaction Sequence: Scaffold‐Inspired Synthesis of Spirooxindoles with Multiple Stereocenters

Y Cao, X Jiang, L Liu, F Shen, F Zhang… - Angewandte Chemie …, 2011 - infona.pl
A‐spiro‐ing: The title reaction of α‐isothiocyanato imides and methyleneindolinones has
been realized for the first time using 1 as the catalyst. This newly developed synthetic …

A unique approach to the concise synthesis of highly optically active spirooxazolines and the discovery of a more potent oxindole-type phytoalexin analogue

X Jiang, Y Cao, Y Wang, L Liu, F Shen… - Journal of the American …, 2010 - ACS Publications
Drug-lead synthesis through rapid construction of chiral molecular complexity around the
biologically relevant framework using a highly efficient strategy is a key goal of organic …

Chiral thioureas—preparation and significance in asymmetric synthesis and medicinal chemistry

F Steppeler, D Iwan, E Wojaczyńska, J Wojaczyński - Molecules, 2020 - mdpi.com
For almost 20 years, thioureas have been experiencing a renaissance of interest with the
emerged development of asymmetric organocatalysts. Due to their relatively high acidity and …

An asymmetric approach toward chiral multicyclic spirooxindoles from isothiocyanato oxindoles and unsaturated pyrazolones by a chiral tertiary amine thiourea …

Q Chen, J Liang, S Wang, D Wang… - Chemical …, 2013 - pubs.rsc.org
The first organocatalytic Michael–cyclization cascade reaction between isothiocyanato
oxindoles and unsaturated pyrazolones has been developed. The multicyclic spiro …

Asymmetric organocatalytic synthesis of γ-nitrocarbonyl compounds through Michael and Domino reactions

D Roca-Lopez, D Sadaba, I Delso, RP Herrera… - Tetrahedron …, 2010 - Elsevier
Recent advances in the organocatalytic enantioselective synthesis of γ-nitrocarbonyl
compounds through Michael additions of either nitroalkanes to α, β-unsaturated carbonyl …

Bifunctional Hydrogen‐Bond Donors That Bear a Quinazoline or Benzothiadiazine Skeleton for Asymmetric Organocatalysis

T Inokuma, M Furukawa, T Uno… - … A European Journal, 2011 - Wiley Online Library
Abstract Hydrogen‐bond (HB)‐donor catalysts that bear a 2‐aminoquinazolin‐4‐(1H)‐one
or a 3‐aminobenzothiadiazine‐1, 1‐dioxide skeleton have been developed, and it has been …

Highly enantioselective organocatalyzed vinylogous Michael-type reaction for the construction of trifluoromethylated all-carbon quaternary stereocenters

Q Chen, G Wang, X Jiang, Z Xu, L Lin, R Wang - Organic letters, 2014 - ACS Publications
The first example of a highly enantioselective vinylogous Michael-type reaction of β, β-
disubstituted nitroalkenes is disclosed. A series of biologically important chiral oxindoles …

A Polystyrene‐Supported, Highly Recyclable Squaramide Organocatalyst for the Enantioselective Michael Addition of 1, 3‐Dicarbonyl Compounds to β‐Nitrostyrenes

P Kasaplar, P Riente, C Hartmann… - Advanced Synthesis & …, 2012 - Wiley Online Library
A chiral squaramide has been supported onto a polystyrene (PS) resin through a copper‐
catalyzed azide–alkyne cycloaddition (CuAAC) reaction and used as a very active, easily …