Diastereodivergent Asymmetric [4 + 2] Cycloaddition of In Situ Generated ortho-Quinone Methides and Allenyl Ketones Enabled by Chiral Phosphoric Acid Catalysis

G Shen, F He, W **e, H Gu, X Yang - ACS Catalysis, 2023 - ACS Publications
Asymmetric diastereodivergent catalysis is a powerful strategy for accessing different
stereoisomers of a molecule, which are important in the discovery of biologically and …

Redox-active molecules as organocatalysts for selective oxidative transformations–an unperceived organocatalysis field

ER Lopat'eva, IB Krylov, DA Lapshin… - Beilstein Journal of …, 2022 - beilstein-journals.org
Organocatalysis is widely recognized as a key synthetic methodology in organic chemistry. It
allows chemists to avoid the use of precious and (or) toxic metals by taking advantage of the …

Enantioselective Synthesis of Spiro Chroman‐Isoindolinones via Formal (4+2) Cycloaddition of In Situ‐Generated ortho‐Quinone Methides with 3‐Methylene …

T Wang, B Huang, YQ Wang - Advanced Synthesis & Catalysis, 2022 - Wiley Online Library
Using chiral phosphoric acids as organocatalysts, a formal asymmetric (4+ 2) cycloaddition
of 3‐methylene isoindolinone and in situ‐generated ortho‐quinone methide substrates is …

Palladium-catalysed diastereodivergent inverse-electron-demand oxa-Diels–Alder reactions of in situ formed cyclopentadienones via ligand-control

XX Yang, XL Zhao, Q Ouyang, W Du… - Organic Chemistry …, 2022 - pubs.rsc.org
Here we report Pd (0)-catalysed asymmetric inverse-electron-demand oxa-Diels–Alder
reactions between the carbonates of 4-hydroxy-2-cyclopentenones and α-cyano chalcones …

Hetero Diels–Alder reactions of isolable N-borylenamines

P Liang, J Wei, Y Wei, X Wang, F Liu… - Chemical …, 2024 - pubs.rsc.org
A new strategy for N-borylenamines by reaction of 2-alkynyl benzyl azides with B (C6F5) 3
was developed. This novel 1, 3-carboboration reaction proceeded via a 5-exo-dig …

Diastereoselective Synthesis of CF3‐Pyrano[3,4‐c]quinolones from Hetero‐Dendralenes and Aldehydes

C Nagababu, S Sainadh, M Desagoni… - Advanced Synthesis …, 2024 - Wiley Online Library
Herein, we demonstrate an Oxa‐Diels‐Alder reaction of 3‐trifluoroacetyl‐4‐methyl‐quinolin‐
2 (1H)‐one with aldehydes in the presence of a base to engineer the functionalized pyrano …

Six-membered ring systems: With O and/or S atoms

CMM Santos, AMS Silva - Progress in Heterocyclic Chemistry, 2023 - Elsevier
This chapter covers the most recent advances on the synthesis of O-and S-6-membered
heterocycles reported during 2022. This personal overview is focused on the new …

Studien zur Synthese von Populusone: stereoselektiver Zugang zu Oxabicyclo [2.2. 2] octanen

B Hartmayer - 2023 - refubium.fu-berlin.de
Im Rahmen dieser Arbeit wurden drei Strategien zur Darstellung von zentralen
Strukturmotiven des Terpenoid-Naturstoffes Populusone untersucht. Dabei wurde zunächst …

[CYTOWANIE][C] The literature of heterocyclic chemistry, part XXII, 2022

GA Gazieva, YB Evdokimenkova, NO Soboleva - 2025 - Elsevier