Results 1 to 10 of about 642 (76)
Synthesis of 2-Alkenyl-2H-Indazoles From 2-(2-Carbonylmethyl)-2H-Indazoles [PDF]
Molecules, 2016 A procedure has been developed for synthesis of 2-alkenyl-2H-indazoles starting from 2-(2-carbonylmethyl)-2H-indazoles, which are prepared by gallium/aluminium- and aluminium-mediated, direct, regioselective alkylation of indazoles with α-bromocarbonyl ...
Tsung-Hsun Chuang
exaly +4 more sources
Visible light-promoted transition metal-free direct C3-carbamoylation of 2H-Indazoles [PDF]
Frontiers in Chemistry, 2022 We reported a general transition metal-free transformation to access C3-carbamoylated 2H-indazoles via visible light-induced oxidative decarboxylation coupling, in the presence of oxamic acids as the coupling sources, 4CzIPN as the photocatalyst, and ...
Chunhua Ma +7 more
doaj +2 more sources
Synthesis and diversification of SuFEx-active 2H-indazoles from azobenzenes and ethenesulfonyl fluoride [PDF]
RSC AdvancesA direct approach to SuFEx-active 2H-indazoles from azobenzenes and ethenesulfonyl fluoride was developed through Rh(iii)-catalyzed tandem C–H activation and annulation.
Lingayya Rajaka +9 more
doaj +2 more sources
Nitroreductase-triggered indazole formation [PDF]
Nature CommunicationsBiocatalysis contributes significantly to the development of more sustainable synthetic pathways by using mild reaction conditions and water as a solvent.
Henrik Terholsen +5 more
doaj +2 more sources
Phototransposition of Indazoles to Benzimidazoles: Tautomer-Dependent Reactivity, Wavelength Dependence, and Continuous Flow Studies [PDF]
Angewandte Chemie - International EditionCharles S Yeung +2 more
exaly +2 more sources
Beilstein Journal of Organic Chemistry, 2021 The indazole scaffold represents a promising pharmacophore, commonly incorporated in a variety of therapeutic drugs. Although indazole-containing drugs are frequently marketed as the corresponding N-alkyl 1H- or 2H-indazole derivative, the efficient ...
Ryan M. Alam, John J. Keating
doaj +1 more source
Development of a Continuous Photochemical Benzyne-Forming Process
SynOpen, 2021 A continuous-flow process is presented that enables the safe generation and derivatization of benzyne under photochemical conditions. This is facilitated by a new high-power LED lamp emitting light at 365 nm.
Cormac Bracken +2 more
doaj +1 more source
Rh(III)-catalyzed C–H acylmethylation of 2H-indazoles with sulfoxonium ylides
Journal of Saudi Chemical Society, 2020 An efficient Cp*Rh(III)-catalyzed direct acylmethylation of 2H-indazoles with sulfoxonium ylides has been realized under air atmosphere via chelation-assisted strategy.
Ya-Gai Wang +6 more
doaj +1 more source
Bulletin of Chemical Reaction Engineering & Catalysis, 2018 A simple and efficient synthesis of 2H-indazoles is achieved from 2-primary amines, bromobenzaldehydes and sodium azide through domino condensation, C–N and N–N bond formations, catalyzed by a heterogeneous Cu(II)-Clay catalyst.
Bashir Ahmad Dar +2 more
doaj +1 more source
Synthesis and Herbicidal Activity of Phenylpyridines – A New Lead
CHIMIA, 2003 Novel phenylpyridines were synthesized based on molecular modeling oriented design by superposition of herbicidal phenyl-uracils, -indazoles, and diphenylethers.
Peter Schäfer +4 more
doaj +1 more source