Results 71 to 80 of about 2,007 (155)

Asymmetric Transformations of α,β‐Unsaturated Oxazolidinones Catalyzed by C2‐Symmetric Chiral Iron Triad Complexes

Advanced Synthesis &Catalysis, Volume 368, Issue 9, 5 May 2026.
This review highlights the evolution of highly enantioselective oxazolidinone transformations enabled by C2‐symmetric ligands, with emphasis on chiral iron triad complexes as cost‐effective, environmentally benign alternatives to late‐transition‐metal catalysts.
Arthur David, Thierry Ollevier
wiley   +1 more source

Formal [3 + 2]-Cycloaddition of Donor–Acceptor Cyclopropanes to 1,3-Dienes: Cyclopentane Assembly

, 2015
We report a new simple method to access highly substituted cyclopentanes via Lewis acid-initiated formal [3 + 2]-cycloaddition of donor–acceptor cyclopropanes to 1,3-dienes.
Olga A. Ivanova (1456993), Mikhail Ya. Melnikov (1456987), Alexey O. Chagarovskiy (1457002), Ekaterina M. Budynina (1456996), Yuri K. Grishin (1456990), Igor V. Trushkov (1456999)   +5 more
core   +1 more source

Nucleophilic Opening of Donor–Acceptor Cyclopropanes with Indoles via Hydrogen Bond Activation with 1,1,1,3,3,3-Hexafluoroisopropanol

, 2018
The treatment of donor–acceptor cyclopropanes with the a strong hydrogen bond donor, HFIP, activated the cyclopropanes (via presumed hydrogen bonding) toward homo-Michael additions with indoles as the nucleophiles.
Carling R. Renwick (5251679), Michael A. Kerr (1896886), Lauren C. Irwin (5251676)   +2 more
core   +1 more source

(3+3)-Annulation of Donor–Acceptor Cyclopropanes with Diaziridines

, 2020
The first example of (3+3)-annulation of two different three-membered rings is reported herein. Donor-acceptor cyclopropanes in reaction with diaziridines were found to afford perhydropyridazine derivatives in high yields and diastereoselectivity under ...
Chagarovskiy A.O., Ivanova O.A., Makhova N.N., Kuznetsov V.V., Vasin V.S., Rybakov V.B., Shumsky A.N., Trushkov I.V.   +7 more
core   +2 more sources

Donor-Acceptor Cyclopropanes: Activation Enabled by a Single, Vinylogous Acceptor. [PDF]

Angew Chem Int Ed Engl, 2023
Ahlburg NL, Hergert O, Jones PG, Werz DB.   +3 more
europepmc   +1 more source

Reactivity Studies of Donor-Acceptor Cyclopropanes: Is there a Relation to Structural and Electronic Properties? [PDF]

, 2019
The kinetics of (3+2) cycloaddition reactions of 18 different donor-acceptor cyclopropanes with the same aldehyde were studied by in situ NMR spectroscopy. Increasing the electron density of the donor residue accelerates the reaction by a factor of up to
Kreft, Alexander, Werz, Daniel B, Jones, Peter G, Lücht, Alexander, Grunenberg, Jörg   +4 more
core   +1 more source

Functionalization of Sydnones with Donor‐Acceptor Cyclopropanes, Cyclobutanes, and Michael Acceptors [PDF]

, 2021
Nils L. Ahlburg, Tyll Freese, Simon Kolb, Sebastian Mummel, Andreas Schmidt, Daniel B. Werz   +5 more
openalex   +1 more source

Intriguing Electrophilic Reactivity of Donor-Acceptor Cyclopropanes: Experimental and Theoretical Studies

, 2017
International audienceA new reactivity of donor–acceptor cyclopropanes (DACs) has been highlighted and, for the first time, we report that they could formally behave as nucleophiles and be func-tionalized at their C3 position.
Parrain, Jean-Luc, Dousset, Maxime, Maxime Dousset, Chouraqui, Gaëlle, Jean-Luc Parrain, Gaëlle Chouraqui   +5 more
core   +1 more source

Designing Donor‐Acceptor Cyclopropane for the ThermalSynthesis of Carbocyclic Eight‐Membered Rings [PDF]

, 2023
Kévin Masson, Maxime Dousset, Bohdan Biletskyi, Sara Chentouf, Jean‐Valère Naubron, Jean‐Luc Parrain, Laurent Comméiras, Paola Nava, Gaëlle Chouraqui   +8 more
openalex   +1 more source

Donor‐Acceptor Cyclopropanes: Activation Enabled by a Single, Vinylogous Acceptor

, 2022
Nils L. Ahlburg, Oliver Hergert, Peter G. Jones, Daniel B. Werz   +3 more
openalex   +1 more source