New developments of the principle of vinylogy as applied to π-extended enolate-type donor systems

C Curti, L Battistini, A Sartori, F Zanardi - Chemical reviews, 2020 - ACS Publications
The principle of vinylogy states that the electronic effects of a functional group in a molecule
are possibly transmitted to a distal position through interposed conjugated multiple bonds …

Catalytic asymmetric synthesis of 3, 3-disubstituted oxindoles: diazooxindole joins the field

ZY Cao, YH Wang, XP Zeng, J Zhou - Tetrahedron Letters, 2014 - Elsevier
The catalytic asymmetric synthesis of 3, 3-disubstituted oxindoles, a big family of privileged
scaffolds in natural products and drugs, is of current interest. Recently, the catalytic …

Asymmetric Hydroaminoalkylation of Alkenylazaarenes via Cooperative Photoredox and Chiral Hydrogen‐Bonding Catalysis

X Chai, X Hu, X Zhao, Y Yin, S Cao… - Angewandte Chemie …, 2022 - Wiley Online Library
Chiral hydrogen‐bonding (H‐bonding) catalytic asymmetric conjugate addition to activated
olefins has been widely used to access enantioenriched molecules containing stereocenters …

Sterically Hindered and Deconjugative α‐Regioselective Asymmetric Mannich Reaction of Meinwald Rearrangement‐Intermediate

J Xu, Y Song, J Yang, B Yang, Z Su… - Angewandte Chemie …, 2023 - Wiley Online Library
Compared to γ‐addition, the α‐addition of α‐branched β, γ‐unsaturated aldehydes faces
larger steric hindrance and disrupts the π–π conjugation, which might be why very few …

Synergetic iridium and amine catalysis enables asymmetric [4+ 2] cycloadditions of vinyl aminoalcohols with carbonyls

MM Zhang, YN Wang, BC Wang, XW Chen… - Nature …, 2019 - nature.com
Catalytic asymmetric cycloadditions via transition-metal-containing dipolar intermediates are
a powerful tool for synthesizing chiral heterocycles. However, within the field of palladium …

Regio‐and Stereoselective Cascade of β, γ‐Unsaturated Ketones by Dipeptided Phosphonium Salt Catalysis: Stereospecific Construction of Dihydrofuro‐Fused [2, 3 …

H Zhang, J He, Y Chen, C Zhuang… - Angewandte Chemie …, 2021 - Wiley Online Library
Chiral (dihydro) furo‐fused heterocycles are significant structural motifs in numerous natural
products, functional materials and pharmaceuticals. Therefore, developing efficient methods …

Remote Control of Axial Chirality: Aminocatalytic Desymmetrization of N-Arylmaleimides via Vinylogous Michael Addition

N Di Iorio, P Righi, A Mazzanti… - Journal of the …, 2014 - ACS Publications
Remote control of the axial chirality of N-(2-t-butylphenyl) succinimides was realized via the
vinylogous Michael addition of 3-substituted cyclohexenones to N-(2-t-butylphenyl) …

An organocatalytic asymmetric Friedel–Crafts addition/fluorination sequence: construction of oxindole–pyrazolone conjugates bearing vicinal tetrasubstituted …

X Bao, B Wang, L Cui, G Zhu, Y He, J Qu, Y Song - Organic letters, 2015 - ACS Publications
A highly efficient and practical one-pot sequential process, consisting of an organocatalytic
enantioselective Friedel–Crafts-type addition of 4-nonsubstituted pyrazolones to isatin …

Dynamic Kinetic Resolution of β-Substituted α-Diketones via Asymmetric Transfer Hydrogenation

T Chen, W Liu, W Gu, S Niu, S Lan, Z Zhao… - Journal of the …, 2022 - ACS Publications
Developing innovative dynamic kinetic resolution (DKR) modes and achieving the highly
regio-and enantioselective semihydrogenation of unsymmetrical α-diketones are two …

Catalytic enantioselective and diastereoselective allylic alkylation with fluoroenolates: efficient access to C3‐fluorinated and all‐carbon quaternary oxindoles

K Balaraman, C Wolf - Angewandte Chemie International …, 2017 - Wiley Online Library
Abstract Synthetically versatile 3, 3‐disubstituted fluorooxindoles exhibiting vicinal chirality
centers were obtained in high yields and with excellent enantio‐, diastereo‐, and …