Results 121 to 130 of about 28,372 (298)
Homohalocyclization: Electrophilic Bromine-Induced Cyclizations of Cyclopropanes
An efficient method for the halocyclization of cyclopropanes has been developed. The cyclopropanes undergo a 1,3-addition reaction to form homohalocyclization products compared to conventional alkene halocyclizations.
Christian Rösner (1668952) +1 more
core +1 more source
Boronic Acid Inhibitors of β‐Lactamases: A Promising Strategy Against Antimicrobial Resistance
ABSTRACT The rise of antimicrobial resistance (AMR) poses a critical threat to global health, mostly due to the proliferation of β‐lactamases, a class of enzymes responsible for the inactivation of β‐lactam antibiotics. Among the most promising strategies to restore β‐lactam efficacy is the use of β‐lactamase inhibitors (BLIs), with boronic acid ...
Nicolò Santi +4 more
wiley +1 more source
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openaire +2 more sources
Synthesis of 1-aryl-2-vinyl cyclopropanes by intramolecular carbolithiation
Benzylselenides bearing a γ-alkenyl-ε-sulfonyloxy side chain react with butyllithiums to produce, via the corresponding benzyllithiums, 1-aryl-2-vinyl ...
François Couty +3 more
core +1 more source
Main‐chain polyfullerenes: Taking fullerene to the next dimension
This short review appraises main‐chain polyfullerenes. Their slow development over 30 years has suddenly boomed with a rapid growth due to exciting developments in solar energy. Abstract This mini‐review gives an overview of the development, chemistry, properties and applications of main‐chain polyfullerenes.
Marco Antônio GB Gomes +4 more
wiley +1 more source
The continuing significance of chiral agrochemicals
In the time frame 2018–2023, around 43% of the 35 chiral agrochemicals introduced to the market (herbicides, fungicides, insecticides, acaricides, and nematicides) contain one or more stereogenic centers in the molecule, and almost 69% of them have been marketed as racemic mixtures of enantiomers or stereoisomers.
Peter Jeschke
wiley +1 more source
Five Decades of Dispute: A Triptych. Roald Hoffmann
This article examines the historical Corey–Woodward controversy through Roald Hoffmann's personal perspective, completing a triptych on the prolonged dispute. Drawing on archival records, contemporaneous correspondence, and extensive interviews, it reconstructs Hoffmann's interactions with Corey and Woodward from the 1960s onward.
Jeffrey I. Seeman
wiley +1 more source
Cyclopropanols undergo palladium‐catalyzed, zinc‐mediated allylation with allyl acetates: the ring opens transiently to an enolized homoenolate, is intercepted by π‐allylpalladium, and recloses to furnish β‐allylated cyclopropanols. This formal “allylic cyclopropylation” broadens the reaction space for ring‐retentive functionalization of cyclopropanols.
Kento Tsukiji +2 more
wiley +2 more sources
OPTICALLY ACTIVE CHRYSANTHEMIC ACID AND ITS ANALOGUES [PDF]
Optically active chrysanthemic acid and its analogues have received considerable attention in recent years due to their practical importance. This review will focus on describing the developments in the synthesis of optically active chrysanthemic acid ...
L. Bets +5 more
doaj
The nucleophilic ring opening of donor–acceptor cyclopropanes with the cyanate ion is reported for the first time. Cyclopropanes, spiro-activated with oxindole fragments as acceptors, are shown to undergo transformations into biologically relevant spiro[
Dmitry A. Skvortsov (1773577) +5 more
core +1 more source

