Results 41 to 50 of about 24,426,642 (196)
Pd‐Catalyzed Asymmetric Dearomative Heck/Tsuji‐Trost Difunctionalization of Naphthalenes
Advanced Science, EarlyView.We have developed a palladium‐catalyzed asymmetric dearomative Heck/Tsuji‐Trost 1,4‐difunctionalization reaction of naphthalenes, affording 4‐aminospirocyclohexene oxindole products bearing two remote chiral centers. Through the effect of the newly designed chiral sulfinamide phosphine ligand with large steric hindrance, side reactions are inhibited ...
Long‐Ling Ma +3 more
wiley +1 more source
, 2018 Two complementary synthetic manifestations leading to highly substituted 1-naphthol and 2-naphthol derivatives via Lewis acids catalyzed annulations of ynamides with acyl chlorides are described here. A one-pot synthesis of 4-amino-2-naphthol derivatives
Siqi Li (2283472) +5 more
core +3 more sources
Journal of Chemistry, 2016 New 1-[(1,3-thiazol-2-ylamino)methyl]-2-naphthols were obtained by condensation of 2-aminothiazole, aromatic aldehydes, and 2-naphthol in the presence of (+)-camphor-10-sulfonic acid ((+)-CSA) as an effective catalyst under ultrasound-promoted solvent ...
Emel Pelit, Zuhal Turgut
doaj +1 more source
Analytical Sciences, 2011 A wireless magnetoelastic sensor has been developed for the determination of 2-naphthol (2-NAP) in human urine. This method is based on the precipitation of 2-NAP with diazonium salts produced by the diazo-reaction of sulfamethoxazole (SMZ) with nitrite under a weak alkaline condition, resulting in a descending of the resonance frequency of a wireless ...
YUAN, Yu-Kun +7 more
openaire +3 more sources
(S,S)-1-(Phenyl((1′-4-nitrophenyl-ethyl)amino)methyl)-2-naphthol
Molbank, 2022 The Betti reaction of 2-naphthol, benzaldehyde and (S)-1-(4-nitrophenyl)ethylamine without any solvent gave the corresponding aminobenzylnaphthol, that is the (S,S)-1-(phenyl((1′-4-nitrophenyl-ethyl)amino)methyl)-2-naphthol, in good yield (56%).
Maria Annunziata M. Capozzi +1 more
doaj +1 more source
Spectrophotometric Determinations of 2-Nitroso-1-naphthol [PDF]
, 2002 Determinations of micro amounts of 2-nitroso-1-naphthol were performed by measuring its proper absorptions in the UV-Vis spectral region in ethanol and in acidic and basic ethanol-water Solutions. Further, a procedure of determining 2-nitroso-1-naphthol,
Burger, Nicoletta, Foretić, Blaženka
core +1 more source
Frontiers in Public HealthBackgroundAging is one of the most important public health issues. Previous studies on the factors affecting aging focused on genetics and lifestyle, but the association between polycyclic aromatic hydrocarbons (PAHs) and aging is still unclear ...
Zuqiang Fu +4 more
doaj +1 more source
Spectrophotometric Determination of Chloramphenicol in Pharmaceutical Formulations by Diazotization and Coupling Reaction [PDF]
Kirkuk Journal of ScienceChloramphenicol (CAP), a broad-spectrum antibiotic, was quantitatively analyzed in various pharmaceutical formulations using a rapid and sensitive spectrophotometric method, with the characterization via Fourier-transform infrared (FTIR) spectroscopy ...
Vian Ismail +7 more
doaj +1 more source
Autoxydation des 1‐Methyl‐2‐naphthols [PDF]
Berichte der deutschen chemischen Gesellschaft, 1914 n ...
openaire +2 more sources
, 1941 2-Propyl-1-naphthol has been prepared by the Clemmenson Redduction of 2-propionyl-1-naphthol, the simple derivatives of which have been described. Bromination and nitration of 2-propionyl-1-naphthol under various conditions have been studied, and the ...
Desai, R. D. +2 more
core +1 more source