Results 71 to 80 of about 3,335 (198)
Molecules, 2010 Catalytic asymmetric 1,4-addition of β-keto esters to nitroalkenes is described. 2.5 mol % of a homobimetallic Lewis acid/Brønsted base bifunctional Co2-Schiff base complex smoothly promoted the reaction in excellent yield (up to 99 ...
Masakatsu Shibasaki +3 more
doaj +1 more source
Substrate Walking for Selective Ene Reduction
ChemCatChem, Volume 18, Issue 9, 14 May 2026.Ene‐reductases (EREDs) efficiently reduce activated C═C bonds. Expanding the current application, they catalyze the selective reduction of highly substituted cyclohexenones. Immobilized, they were scaled to 200 mL, achieving full substrate conversion without enzyme degradation. ABSTRACT Ene‐reductases (EREDs) efficiently reduce activated C═C bonds, but
Hugo Brasselet +8 more
wiley +1 more source
, 2016 The first catalytic asymmetric Friedel−Crafts reaction of 2-methoxyfuran with nitroalkenes was developed under the catalysis of diphenylamine-tethered bis(oxazoline)−Zn(OTf)2 complexes. The reaction conditions and ligands were optimized, and the scope of
Han Liu (288039) +2 more
core +1 more source
Uniqueness of Supramolecular Systems
Macromolecular Materials and Engineering, Volume 311, Issue 5, May 2026.Thanks to the variety of classes of supramolecular systems, they have been widely used in various applications. For example, in sensing devices, catalysis, and biomedicine. An example of a conventional photovoltaic material converted into electrical energy. Selective UV or NIR absorbers are required to produce materials with low or no coloration.
José A. Sánchez‐Fernández
wiley +1 more source
Beilstein Journal of Organic Chemistry, 2016 An investigation on the stereoselective cascade sulfa-Michael/aldol reaction of nitroalkenes and commercially available 1,4-dithiane-2,5-diol to 3,4,5-substituted tetrahydrothiophenes, bearing a quaternary stereocenter, is presented.
Sara Meninno +4 more
doaj +1 more source
European Journal of Organic Chemistry, Volume 29, Issue 16, 25 April 2026.A chemoenzymatic synthesis of (1R,2S)‐metaraminol was developed by combining gold(I)‐catalysed alkyne hydration and stereoselective biotransamination in a sequential one‐pot process. Various phenol protection strategies were considered in oxidation‐reduction sequences, providing access to enantiopure propargylic alcohols as starting materials for ...
Lorena Escot +2 more
wiley +1 more source
, 2016 A highly enantioselective 1,4-addition reaction of nitroalkenes with diphenyl phosphite was successfully accomplished using a newly developed axially chiral guainidine catalyst.
Hitoshi Ube (1868782) +2 more
core +1 more source
The Diarylprolinol Silyl Ethers: After 20 Years Still Opening New Doors in Asymmetric Catalysis
Angewandte Chemie, Volume 138, Issue 11, 9 March 2026.Catalysis Rules! The year 2025 marks the 20th anniversary of diarylprolinol silyl ethers in asymmetric organocatalysis. During the first decade after their discovery, these catalysts have been established as one of the most versatile tools in aminocatalysis. Although now considered mature, recent years have witnessed renewed innovation.
Enrico Marcantonio +2 more
wiley +1 more source
Communications ChemistryThe coronavirus disease 2019 (COVID-19) pandemic continues to represent a global public health issue. The viral main protease (Mpro) represents one of the most attractive targets for the development of antiviral drugs.
Francisco J. Medrano +17 more
doaj +1 more source
Nitroalkenes in the synthesis of carbocyclic compounds
, 2014 The applications of nitroalkenes in the synthesis of small, common and medium ring carbocycles, including natural products are investigated in this review.
Halimehjani, Azim Ziyaei +2 more
core +1 more source