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M-Hydroxyacetophenone

Since two quaternary atoms and four CH atoms appear in the C NMR spectrum, the latter with a benzenoid coupling constant of 7-9 Hz, this is a disubstituted benzene ring, and the C signal with 5c = 162.2 fits a phenoxy C atom. The keto carbonyl (5c = 204.9) and methyl (5c = 26.6) resonances therefore point to an acetyl group as the only meaningful second substituent. Accordingly, it must be either o- or m-hydroxyacetophenone A or B the para isomer would show only four benzenoid C signals because of the molecular symmetry. [Pg.192]

Next, ask yourself what an immediate precursor of the target might be. Since an acetyl group is a meta director while a hydroxyl group is an ortho and para director, acetophenone might be a precursor of m-hydroxyacetophenone. Benzene, in turn, is a precursor of acetophenone. [Pg.944]

Let us consider the synthesis of flavone 9.19, which is the parent of a large series of natural products. Disconnection of the carbon-oxygen bond in the usual way results in enol 9.20 which exists as 1,3-diketone 9.21. This 1,3-dicarbonyl relationship can be exploited in the classical manner yielding orf/m-hydroxyacetophenone 9.22. The synthetic problem centres on methodology for the C-benzoylation of the enolate derived from 9.22 with some activated benzoic acid derivative 9.23. [Pg.70]

How would you prepare m-hydroxyacetophenone from benzene, using adia-zonium replacement reaction in your scheme ... [Pg.1006]

Menon, G.N. White, L.B. Simultaneous determination of hydrochlorothiazide and triamterene in capsule formulations by high-performance liquid chromatography. J.Pharm.Sci., 1981, 70, 1083-1085 [capsules m-hydroxyacetophenone (IS) simultaneous triamterene]... [Pg.698]

Acetophenone, 4 -t-butyl-2, 6 -dimethyl-3, 5 -dinitro-. See Musk ketone Acetophenone, 4 -ethyl-. See 4-Ethylacetophenone Acetophenone, 2 -hydroxy-. See o-Hydroxyacetophenone Acetophenone, 3 -hydroxy-. See m-Hydroxyacetophenone... [Pg.43]

Acety I phenol. See p-Hydroxyacetophenone m-Acetylphenol. See,m-Hydroxyacetophenone o-Acetylphenol. See o-Hydroxyacetophenone p-Acetylphenol. See p-Hydroxyacetophenone Acetyl-p-phenylenediamine. See p-... [Pg.55]

See 4-Acetaminophenoi Hydroxyacetic acid. See Glycolic acid 2-Hydroxyacetophenone. See o-Hydroxyacetophenone 3 -Hydroxyacetophenone. See m-Hydroxyacetophenone 4 -Hydroxyacetophenone. See p-Hydroxyacetophenone m-Hydroxyacetophenone CAS 121-71-1 EINECS/ELINCS 204-494-0 Synonyms Acetophenone, 3 -hydroxy- 3-Acetylphenol m-Acetylphenol Ethanone, 1-(3-hydroxyphenyl)- 3 -Hydroxyacetophenone... [Pg.2103]

Hydroxy-2-phenyl-1,3-dioxane. See Benzaldehyde glyceryl acetal 4-Hydroxy-m-phenylenediammonium dichloride. See 2,4-Diaminophenol hydrochloride 1-(3-Hydroxyphenyl) ethanone 1-(3-Hydroxyphenyl) ethan-1-one. See m-Hydroxyacetophenone... [Pg.2133]

Dimethylbenzophenone 4 -Ethoxyacetophenone 2-Ethylanthraquinone Ferrocene m-Hydroxyacetophenone p-Hydroxyacetophenone 4-Methoxybenzophenone 3-Methylbenzophenone... [Pg.5522]

See Acet cetonamine. o-%Aminophenacyl Alcohol (o-Amino6enzo l carbinol, o-amino-m hydroxyacetophenone)... [Pg.115]

See other pages where M-Hydroxyacetophenone is mentioned: [Pg.743]    [Pg.627]    [Pg.943]    [Pg.944]    [Pg.944]    [Pg.743]    [Pg.194]    [Pg.743]    [Pg.1338]    [Pg.1578]    [Pg.1579]    [Pg.192]    [Pg.1338]    [Pg.943]    [Pg.944]    [Pg.189]    [Pg.943]    [Pg.944]    [Pg.381]    [Pg.743]    [Pg.192]    [Pg.627]    [Pg.627]    [Pg.55]    [Pg.6107]    [Pg.6753]    [Pg.7054]    [Pg.132]    [Pg.159]    [Pg.971]    [Pg.971]   


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2- hydroxyacetophenone

4’-hydroxyacetophenon

Hydroxyacetophenones

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