Results 181 to 190 of about 17,166 (251)
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Journal of Molecular Structure, 2019
Reactions of 2,3-dichloro-1,4-naphthoquinone with o/m and p-aminophenols are studied. It was shown that reaction with 2-aminophenol results in 6-chloro-12a-methoxy-7H-benzo[c]phenozaxine-5(12aH)-one (1a) as the major product along with (6-chloro-12a ...
D. Choudhari +7 more
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Reactions of 2,3-dichloro-1,4-naphthoquinone with o/m and p-aminophenols are studied. It was shown that reaction with 2-aminophenol results in 6-chloro-12a-methoxy-7H-benzo[c]phenozaxine-5(12aH)-one (1a) as the major product along with (6-chloro-12a ...
D. Choudhari +7 more
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Microdetermination ofp-aminophenol
Mikrochimica Acta, 1961A colorimetric method for the miorodetermination ofp-aminophenol based on indophenol dye formation is described. The conditions for its determination in the presence of theo- andm-isomers are given.
Ervin Jungreis, Jacques C. Soriano
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Synthesis of benzoxazoles via the copper-catalyzed hydroamination of alkynones with 2-aminophenols.
Organic and biomolecular chemistry, 2019We describe herein the synthetic method to benzoxazole derivatives via the copper-catalyzed hydroamination of alkynones with 2-aminophenols. The method produced a wide variety of functionalized benzoxazole derivatives in good yields.
Kohei Oshimoto, H. Tsuji, M. Kawatsura
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Journal of the Chemical Society C: Organic, 1966
o-Aminophenol gave, on tritylation under various sets of conditions, 2-amino-5-tritylphenol (I), this structure being different from the one assigned in an earlier report. m-Aminophenol and m-anisidine yielded 5-amino-2-tritylphenol (V) and 3-methoxy-4-tritylaniline (VIII), respectively, p-Aminophenol and p-anisidine were not tritylated under the same ...
Gabriel Chuchani, Jacob Zabicky
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o-Aminophenol gave, on tritylation under various sets of conditions, 2-amino-5-tritylphenol (I), this structure being different from the one assigned in an earlier report. m-Aminophenol and m-anisidine yielded 5-amino-2-tritylphenol (V) and 3-methoxy-4-tritylaniline (VIII), respectively, p-Aminophenol and p-anisidine were not tritylated under the same ...
Gabriel Chuchani, Jacob Zabicky
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Hygroscopicity of nitrogen-containing organic carbon compounds: o-aminophenol and p-aminophenol
Environmental Science: Processes & Impacts, 2023As nitrogen-containing organic carbon of atmospheric relevance, the water uptake of two phenolic compounds, o-aminophenol and p-aminophenol, is investigated under sub- and supersaturated conditions through the lens of aerosol-cloud interactions.
Kotiba A. Malek +3 more
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Organic Letters, 2018
A one-pot, three-component reaction between alkyl 1-chlorocyclopropanecarboxylate, alkyne diester, and amine is developed. This cascade reaction proceeds smoothly to afford substituted 2-aminophenols in high yields. The process proceeds through a formal [
Sen‐Lin Yang +4 more
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A one-pot, three-component reaction between alkyl 1-chlorocyclopropanecarboxylate, alkyne diester, and amine is developed. This cascade reaction proceeds smoothly to afford substituted 2-aminophenols in high yields. The process proceeds through a formal [
Sen‐Lin Yang +4 more
semanticscholar +1 more source
Solid State Sciences, 2009
Abstract Three new hybrid crystals of 2-aminophenol-HClO4 (2-AP-HClO4, 1), 3-aminophenol-HClO4 (3-AP-HClO4, 2) and 4-aminophenol-HClO4 (4-AP-HClO4, 3) were obtained and their crystal structures determined. The 1 crystallises in centrosymmetric space group C2/c of monoclinic system while the other two (2 and 3) crystallise in the non-centro symmetric ...
Jan Janczak, Genivaldo Julio Perpétuo
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Abstract Three new hybrid crystals of 2-aminophenol-HClO4 (2-AP-HClO4, 1), 3-aminophenol-HClO4 (3-AP-HClO4, 2) and 4-aminophenol-HClO4 (4-AP-HClO4, 3) were obtained and their crystal structures determined. The 1 crystallises in centrosymmetric space group C2/c of monoclinic system while the other two (2 and 3) crystallise in the non-centro symmetric ...
Jan Janczak, Genivaldo Julio Perpétuo
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Metal-free N-formylation of 2-aminophenols using dimethylformamide and CSA
Synthetic Communications, 2019DMF has been proved to be an efficient formylation reagent for 2-aminophenols in the presence of (±) camphorsulfonic acid (CSA) in this work. CSA works as an acid catalyst and a neutralizer of dimethyl amine which is kicked off from DMF.
Yuanyong Yang +4 more
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Development by Aminophenols II
The Journal of Photographic Science, 1977AbstractIn general, the rate of development by aminophenols at a given pH is proportional to their concentration. When the concentration is held constant and the pH is varied, the aminophenols divide into two groups. In one, the rate is proportional to the calculated concentration of the relevant ion species, whereas in the other, the rate varies as ...
J.R. Fyson, J.R. Levenson
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Colorimetric determination ofm-aminophenol
Mikrochimica Acta, 1969Potassium iodate reacts withm-aminophenol in presence of sulfuric acid to give pink violet color having 5μg as visual limit of identification. The color reaction is specific form-aminophenol;o-, andp-aminophenol do not interfere if their amount does not exceed 10 and 70% respectively.
Manzur-ul-Haque Hashmi +2 more
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