Results 61 to 70 of about 20,092 (323)
Asian Journal of Organic Chemistry, EarlyView.A method for the synthesis of multi‐substituted β‐carbolin‐1‐ones is developed, utilizing iridium‐catalyzed intramolecular C─H/N─H amination of 3‐amino‐2‐pyridones synthesized via the conjugate addition of diethyl 2‐aminomalonate to alkynyl imines.
Honoka Mori +4 more
wiley +1 more source
SAM-dependent enzyme-catalysed pericyclic reactions in natural product biosynthesis. [PDF]
, 2017 Pericyclic reactions-which proceed in a concerted fashion through a cyclic transition state-are among the most powerful synthetic transformations used to make multiple regioselective and stereoselective carbon-carbon bonds.
Chen, Mengbin +9 more
core +1 more source
Synthesis of Novel Dihydropyridine‐Iminium Salts Containing a Selenazine Core
Asian Journal of Organic Chemistry, EarlyView.An efficient method to develop novel dihydropyrido[3,2‐e][1,3]selenazines iminium salts. A comparative study of the key reagent selenourea towards thiourea and urea was carried out to assess the contribution of chalcogen to the pathway. DFT (density functional theory) calculations have predicted the optimized minimum energy structure for the hybrid ...
Reinier Lemos +6 more
wiley +1 more source
Angewandte Chemie, 2018 A novel rhodium-catalyzed dearomatization of O-substituted pyridines to access N-substituted 2-pyridones has been developed. A computational study suggests a mechanism involving the formation of a pyridinium ylide followed by an unprecedented 1,4-acyl ...
Guangyang Xu +5 more
semanticscholar +1 more source
Ecofriendly Synthesis in Aqueous Medium: An Expeditious Approach to New N,N-Diethyl Amide Bearing Benzenemethanesulfonamides [PDF]
, 2013 An highly expeditious synthetic approach for the synthesis of benzenemethanesulfonamides (1a-k) and their new corresponding N,N-diethyl substituted amido moieties (2a-k) has been achieved in aqueous medium at room tem-perature. The reaction condition was
Ajani, O. O. +3 more
core +1 more source
Deoxyfluorination of Phenols [PDF]
, 2011 An operationally simple ipso fluorination of phenols with a new deoxyfluorination reagent is presented.Chemistry and Chemical ...
Ritter, Tobias +2 more
core +1 more source
ChemCatChem, EarlyView.The reactions of the common palladium precursors Pd(OAc)2 and PdCl2 and cooperating bipyridone ligands leads to well defined complexes which are general precatalysts for the direct C─H arylation of arenes, more active than Pd(OAc)2/ligand mixtures in nonpolar solvents.
Francisco Villalba +2 more
wiley +1 more source
Angewandte Chemie, Volume 137, Issue 32, August 4, 2025.Carbatranes and anionic pincer ligands were self‐assembled via one‐pot C─F or C─O bond cleavage and the formation of C─O, C─N, or C─C bonds, forming ligand architectures inaccessible by common synthetic methods. This approach allowed to build a customizable library of nickel catalysts for light‐induced C─H bond trifluoromethylation.
Aleksandr Sorvanov +5 more
wiley +2 more sources
Recent advances in chemistry and pharmacological aspects of 2-pyridone scaffolds
Journal of Saudi Chemical Society, 2021 Background: The chemistry and applications of 2-pyridone structures have recently attracted a lot of attention due to their uses as synthetic intermediates and their biological importance.
Mostafa M.K. Amer +4 more
doaj
Evaluation of chemical compounds for induction of male sterility in wheat (Triticum aestivum L.) [PDF]
, 2006 The short-list of eleven chemical hybridizing agents (CHAs) showing 98% or more induction of male sterility were identified following application at the pre-meiotic stage of wheat.
Chakraborty, Kajal, Devakumar, C
core