Results 31 to 40 of about 4,159,820 (313)
Frontiers in Chemistry, 2022 A convenient approach for the construction of pharmaceutically valuable 3-trifluoromethyl-1,2,4-triazoles has been developed, which employs the readily available trifluoroacetimidoyl chlorides, hydrazine hydrate and benzene-1,3,5-triyl triformate (TFBen)
Binjie Wang +7 more
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TRANSITION METAL - FREE SYNTHESIS OF INDOLE DERIVATIVES FROM α,β – UNSATURATED KETONES [PDF]
, 2022 reservedL’indolo è uno fra i composti eterociclici di maggiore importanza e viene riconosciuto come ottimo farmacoforo nell’ambito della chimica farmaceutica grazie alle numerose attività biologiche possedute dai suoi derivati.
AMADIO, FRANCESCO
core
Dentistry Journal, 2022 Background: To analyze the fracture resistance of zirconia implants within the anterior region and evaluate whether zirconia–zirconia implants can be a viable alternative to titanium implants.
Lauryn Attard +6 more
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Synthesis of 2H-Chromenones from Salicylaldehydes and Arylacetonitriles
Molecules, 2017 An efficient and convenient protocol for the synthesis of 2H-chromenones has been developed. In the presence of tBuOK in DMF, good to excellent yields of various chromenones were obtained from the corresponding salicylaldehydes and arylacetonitriles.
Chengcai Li +4 more
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Metal-free restoration in zirconia abutment and metal-ceramic restoration in titanium abutment. [PDF]
, 2019 Metal-free restoration in zirconia abutment and metal-ceramic restoration in titanium abutment.
María Fernanda Solá-Ruiz (7164644) +4 more
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Metal-Free Regiodivergent Addition of Carbon Nucleophiles to α,β-Unsaturated Electrophiles
Molecules, 2017 A mild and metal-free regiodivergent addition of carbon nucleophiles to α,β-unsaturated electrophiles was developed. Total 1,2-regioselectivity was observed in the addition of nitrobenzyl chloride derivative 1 to α,β-unsaturated aldehydes 2 in the ...
Cédric Spitz +3 more
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Metal-Free Aminohalogenation of Quinones With Alkylamines and NXS at Room Temperature
Frontiers in Chemistry, 2022 A simple and practical strategy for intermolecular aminohalogenation of quinone with alkyl amines and NXS was developed, in which haloamines generated in situ were employed as bifunctional reagents.
Jia Li, Yu-An Li, Ge Wu, Xu Zhang
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Minimalistic Design Approach for Multi-Reactivity against Free Radicals and Metal-Free and Metal-Bound Amyloid-β Peptides: Redox-Based Substitutions of Benzene [PDF]
, 2019 We report a minimalistic redox-based design strategy for engineering compact molecules based on the simplest aromatic framework, benzene, with multi-reactivity against free radicals, metal-free amyloid-β, and metal-bound amyloid-β, implicated in the most
Mingeun, Kim +10 more
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Transition-Metal-Free Approach to Polysubstituted Furans [PDF]
, 2020 A convenient and straightforward strategy for the synthesis of 2,3-disubstituted and 2,3,5-trisubstituted furans via a base-promoted domino reaction of β-keto compounds with vinyl dichlorides is described.
Da Long (8357739) +6 more
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MoleculesWe report a green and efficient visible-light-driven method for the arylation and alkylation of quinoxalin-2(1H)-ones and quinolines. This catalyst-free process utilizes air as the oxidant, offering mild reaction conditions, environmental sustainability,
Renjun Tan +3 more
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