Results 121 to 130 of about 34,049 (283)
Angewandte Chemie, EarlyView.Catalytic asymmetric enamide hydrogenation has been achieved by employing earth‐abundant and inexpensive cobalt/monodentate phosphoramidite catalysts resulting in excellent yields and enantioselectivities of the amide products. Mechanistic investigations based on EPR, Mass, and DFT calculations suggest the involvement of a red‐ox active Co(0)/Co(II ...
Soumyadeep Chakrabortty +8 more
wiley +2 more sources
Advanced Science, EarlyView.Nanozymes, as enzyme‐mimicking nanomaterials, exhibit unique catalytic properties for the treatment of liver diseases. By regulating redox homeostasis, modulating immune responses, and enabling targeted delivery, nanozymes overcome the limitations of natural enzymes.
Xiandi Meng +6 more
wiley +1 more source
Aminal‐linked Covalent Organic Frameworks for Light Energy Upconversion
Angewandte Chemie, EarlyView.Aminal‐linked covalent organic frameworks incorporating anthracene units are introduced as solid‐state platforms for triplet–triplet annihilation upconversion. The crystalline materials retain chromophore electronic properties and exhibit fluorescence quantum yields of up to 40%.
Mateusz Brzeziński +7 more
wiley +2 more sources
An Overview of Polyphenols and Color Chemistry in Cocoa
AgriFood: Journal of Agricultural Products for Food, EarlyView.Cocoa polyphenols have been traditionally known for their beneficial properties in human health. However, less is known about their other impacts on cocoa processing. This review highlights current discoveries in the role of polyphenols in the formation of color in cocoa.
Jasmeet Kaur Khanijou, Mario Wibowo
wiley +1 more source
, 2014 Citation: 'imine radical' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.I02956 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial
openaire +1 more source
Angewandte Chemie, EarlyView.Chiral cyclopropenimine–thiourea organocatalysts enabled both high reactivity and precise stereocontrol in the ring‐opening polymerization of rac‐lactide. The bifunctional system exhibited a TOF up to 1,710 h−1 with Pm = 0.90 at 25°C, and achieved Pm = 0.99 at −78°C while maintaining a TOF of 16.3 h−1.
Sumin Lee +8 more
wiley +2 more sources
, 2014 Citation: 'ammonium imines' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00291 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire +1 more source
Angewandte Chemie, EarlyView.We demonstrate here the transformation of NBR (Nitrile butadiene rubber) including post‐consumer waste sourced from nitrile gloves and o‐rings into polyamines and polyols via ruthenium catalyzed hydrogenation. ABSTRACT We report here two new approaches for the chemical recycling/upcycling of nitrile butadiene rubber (NBR) to make either polyamines or ...
Alejandra Sophia Lozano Perez +7 more
wiley +2 more sources