Results 91 to 100 of about 1,413,381 (322)
Vinylogous aldol reaction of heterocyclic silyloxy dienes. Application in synthesis [PDF]
, 2000 A versatile, readily accessible triad of 2-enoxy silane synthons derived from furan, pyrrole, and thiophene is presented. These heterocycles, in reacting with carbonyl and carbonyl- related acceptors, act as vinylogous nucleophile modules, giving rise ...
Casiraghi, Giovanni +2 more
core
Probing the reactivity of a 2,2′-bipyridyl-3,3′-bis-imine ligand by X-ray crystallography [PDF]
, 2014 The reactivity of a Schiff-base bis-imine ligand 3 is probed by X-ray diffraction studies. Its susceptibility to hydrolysis, oxidation and nucleophilic addition reactions is demonstrated by the isolation of the methanol adduct 4 and two diazapene ...
Gumbau-Brisa, R +5 more
core +1 more source
Advanced Science, EarlyView.We present a mechanochemical, radical‐mediated hydroselenation of alkenes under ambient conditions. This method modularly generates alkyl selenyl radicals from elemental selenium and alkyl (pseudo)halides, utilizing PhSiH3 and H2O as hydrogen atom donors, with the water likely originating from the air and/or trace water present in the reagents ...
Xiaochun He +8 more
wiley +1 more source
Angewandte Chemie, EarlyView.A reactivity programmed cascade between carbyne equivalents and allylic benzoates was developed that sequentially orchestrates all three reactivity modes of carbyne equivalents, enabling the rapid installation of three σ‐bonds at a single carbon center and providing efficient, scalable access to structurally diverse spirocyclic ethers. ABSTRACT Carbyne
Jianke Su +5 more
wiley +2 more sources
Journal of ChemistryIn recent years, there has been a significant surge in the catalytic utilization of Schiff–base complexes. These compounds prove to be highly effective as homogeneous catalysts in organic syntheses.
Mehdi Fallah-Mehrjardi, Soheil Sayyahi
doaj +1 more source
Regioselective reactions of 3,4-pyridynes enabled by the aryne distortion model. [PDF]
, 2013 The pyridine heterocycle continues to play a vital role in the development of human medicines. More than 100 currently marketed drugs contain this privileged unit, which remains highly sought after synthetically. We report an efficient means to access di-
Garg, Neil K, Goetz, Adam E
core
Pd-catalyzed enantioselective aerobic oxidation of secondary alcohols: Applications to the total synthesis of alkaloids [PDF]
, 2008 Enantioselective syntheses of the alkaloids (-)-aurantioclavine, (+)-amurensinine, (-)-lobeline, and (-)- and (+)-sedamine are described. The syntheses demonstrate the effectiveness of the Pd-catalyzed asymmetric oxidation of secondary alcohols in ...
Bagdanoff, Jeffrey T. +5 more
core +2 more sources
Advanced Science, EarlyView.This study develops a sugar‐armored, self‐assembled pesticide delivery system that enhances foliar adhesion, provides sustained release, effectively disrupts biofilms, and demonstrates superior bactericidal activity for improved disease control.
Jinghan Yang +3 more
wiley +1 more source
Microorganisms in Chemistry of Nitrogenous Heterocycles [PDF]
, 2017 The monograph is devoted to microbiological methods of obtaining organic compounds from a series of nitrogenous heterocycles (azaarenes, quinolones and saturated nitrogenous heterocycles). It is proposed alternative ways of synthesizing compounds that are difficult to obtain using conventional methods of organic chemistry.
openaire +1 more source
Tertiary Alcohols as Radical Precursors for the Introduction of Tertiary Substituents into Heteroarenes [PDF]
, 2019 Despite many recent advances in the radical alkylation of electron-deficient heteroarenes since the seminal reports by Minisci and co-workers, methods for the direct incorporation of tertiary alkyl substituents into nitrogen heteroarenes are limited ...
Fishman, DA +3 more
core +2 more sources