Results 51 to 60 of about 10,332 (223)
Crystals, 2023 The regiospecific S-benzylation/allylation of two 4-aryl-5-indolyl-1,2,4-triazole-3-thione precursors was carried out using Et3N as a base. Allyl group migration from exocyclic sulfur to the triazole nitrogen (N3) was successfully achieved in a short ...
Eid E. Salama +6 more
doaj +1 more source
Angewandte Chemie International Edition, EarlyView.The first catalytic asymmetric formal [3+2] cycloaddition of allylsilanes delivers cis‐2,5‐disubstituted tetrahydrofuran‐3‐ones that serve as versatile intermediates for the synthesis of diverse bioactive scaffolds. ABSTRACT A formal [3+2] cycloaddition via cyclization/1,2‐hydride shift initiated by nucleophilic attack of allylsilanes has been ...
Hosung Lee +5 more
wiley +1 more source
Allylation of Carbonyl Compounds Bearing a Hydroxyl Group by Tetraallyltin: Highly Stereoselective Allylation in a Chelation-Controlled Manner [PDF]
, 2016 Allylation of Carbonyl Compounds Bearing a Hydroxyl Group by Tetraallyltin: Highly Stereoselective Allylation in a Chelation-Controlled ...
Makoto Yasuda (1768612) +2 more
core +3 more sources
Mechanochemistry Meets Catalysis: Metal Complexes for Greener Organic Transformations
Angewandte Chemie, Volume 138, Issue 29, 13 July 2026.Mechanochemistry is redefining metal catalysis by controlling catalyst formulation, speciation, and deployment. This Review shows how milling, LAG, RAM, and TSE enable rapid metal‐complex assembly, distinctive catalytic manifolds, and scalable synthesis beyond solution chemistry.
Sourav Behera +2 more
wiley +2 more sources
Flipping the Card With Enantiodivergent Organocatalysis
Chemistry – A European Journal, EarlyView.This minireview elaborates on recent organocatalytic strategies for achieving enantiodivergence—the ability to access both product enantiomers using a single chiral catalyst. It highlights how achiral stimuli, such as solvent polarity and chemical additives, along with minimal catalyst modifications, trigger stereochemical inversions in reactions ...
Debora Iapadre +3 more
wiley +1 more source
Asymmetric organocatalytic synthesis of chiral homoallylic amines
Beilstein Journal of Organic ChemistryIn recent decades, the chiral allylation of imines emerged as a key methodology in the synthesis of alkaloids and natural products with 4-, 5- and 6-membered cyclic amine motifs.
Nikolay S. Kondratyev, Andrei V. Malkov
doaj +1 more source
Stereochemical Control in the Matteson Reaction
Chemistry – A European Journal, EarlyView.The Matteson homologation is a highly versatile method for the stereoselective insertion of carbenoids into boronic esters. Through iterative application of the process, complex chiral molecules can be synthesized. The stereoselectivity of the reaction is determined by a chiral diol incorporated in the boronic ester.
Hae Mo Lee, Christoph Hirschhäuser
wiley +1 more source
Inherent directing group enabled, Co(III)-catalyzed C-H allylation/ vi-nylation of isoquinolones [PDF]
The site-selective C8-allylation and vinylation of isoquinolones have been accomplished using allyl acetate and vinyl acetate and oxo group of isoquinolone as an inherent directing group in the presence of Co(III) catalysis. A plausible mechanism for the
Tamanna , Sharma +3 more
core +1 more source
Asymmetric Decarboxylative Allylation of Oxindoles [PDF]
, 2016 An asymmetric decarboxylative palladium-catalyzed allylation of alkyl- and aryl-substituted oxindoles has been developed, enabling the installation of an all-carbon quaternary chiral center at the oxindole 3-position in excellent yields and good to ...
David S. Pugh (2175696) +4 more
core +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Contrasting sustainable biomass with depleting petroleum resources, this review charts the evolutionary timeline of lignin‐based TENGs. We systematically evaluate their fundamental mechanisms, enhancement strategies, and applications in green self‐powered electronics.
Yuxin Yang +9 more
wiley +1 more source