Results 131 to 140 of about 14,649 (249)

Carbene-catalytic enantioselective synthesis of chiral macrocycles. [PDF]

Chem Sci
Yan H, Zhu Y, Yang G, Gu S.
europepmc   +1 more source

The continuing significance of chiral agrochemicals

Pest Management Science, Volume 81, Issue 4, Page 1697-1716, April 2025.
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

Organocatalytic enantioselective synthesis and derivatizations of bridged <i>N</i>,<i>O</i>-acetal bicyclic scaffolds. [PDF]

Chem Sci
Tan J, Yusuipujiang N, Zhang J, Jiang XY, Zhang Z, Wang Y, Ma D.   +6 more
europepmc   +1 more source

Enhanced Biocatalysis in Nanofluidic Membrane Reactors With Goldilocks Nanopores for Enzymes

Small, EarlyView.
We show that enzyme confinement within the three‐dimensionally interconnected nanochannels of a polyurea molecular network membrane, featuring pore‐size tunability to match the enzyme size, enables a highly active nanofluidic reactor platform. Stable continuous‐flow operation for >200 h and a 30 000‐fold increase in specific space‐time yield over ...
Wangsuk Oh, Ji‐Woong Park
wiley   +1 more source

Catalytic enantioselective synthesis of alkylidenecyclopropanes. [PDF]

Nature
Golec JC, Tan DH, Yamazaki K, Tiekink EH, Christensen KE, Hamlin TA, Dixon DJ.   +6 more
europepmc   +1 more source

Contactless Detection of Giant Helicity‐Dependent Photovoltage in Chiral 2D Perovskites

Small, EarlyView.
A novel contactless probe—circularly polarized time‐resolved surface photovoltage spectroscopy is demonstrated to evaluate helicity‐dependent charge separation dynamics without the need for electrical contacts. Application of this novel methodology to chiral 2D perovskites reveals giant transient surface photovoltage anisotropy.
Joanna Dehnel, Ido Zemer, Rawan Hirzalla, Ido Hadar, Igal Levine   +4 more
wiley   +1 more source

Catalytic enantioselective synthesis of azahelicenes via cascade Pictet-Spengler reaction and dehydrogenative aromatization. [PDF]

Nat Commun
Qin T, Xie W, Yang X.
europepmc   +1 more source

Molecularly Engineered 2D Xene Heterostructures With Implanted Peroxidase‐Like Activity for Mimicking Enzyme Functions

Small Methods, EarlyView.
A modular electropolymerization strategy is used to covalently graft a vinyl‐terminated Co(II) molecular catalyst onto allyl 2D germanane. This molecular programming approach yields a 2D Xene nanozyme with implanted peroxidase‐like activity, enabling sensitive and selective electrochemical detection of hydrogen peroxide and the monitoring of ...
Yiming Lei, Xavier Sala, Jordi García‐Antón, Jose Muñoz   +3 more
wiley   +1 more source

Enantioselective Synthesis of Axially Chiral Spiro[3.3]heptanes by Site-Selective C-H Functionalization. [PDF]

ACS Catal
Ly D, Chen Z, Musaev DG, Davies HML.
europepmc   +1 more source

Complex Chemistry of a Chiral Terpyridine Ligand Based on (1R)‐(+)‐Camphor

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
From (1R)‐(+)‐camphor, a chiral terpyridine ligand is accessible in a few steps that coordinates to divalent metal ions of the first and second transition metal row. From structural characterization, the steric repulsion of the two equatorial methyl groups of the tetrahydromethanoquinoline units becomes evident, which causes cyclometalation of the ...
Julia Ehrhard, Marc H. Prosenc, Werner R. Thiel   +2 more
wiley   +1 more source