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1- Acetyl-2-hydroxynaphthalene

Diazotization of 3-(4-aminophenyl)sydnones followed by reaction with 1- or 2-hydroxynaphthalene provides azo dyestuff materials <1998MI209>. A new type of reaction between 4-acetyl-3-arylsydnones and hydrazine yields substituted pyrrolidinones by a cycloaddition process involving loss of nitric oxide (Equation 20) <1999H(51)95, 2001AHC73>. [Pg.229]

Diformylation and cyclization of the boron trifluoride complex (59) of l-acetyl-2-hydroxynaphthalene surprisingly gave the peri-cyclized, phe-nalenone (60) as the major product, rather than the expected chromone (61).46... [Pg.222]

Azo coupling of diazotized orthanilic acid with the sodium salt of IV-acetyl J acid (7-acetylamine-4-hydroxynaphthalene-2-sulfonic acid) (22) yields mainly coupling ortho to the hydroxy group. Substitution at both activated positions is significantly ster-ically hindered but ionization of the hydroxy group of (22) at higher pH causes additional electrostatic interaction on formation of the a-complex for substitution at the favoured position decreasing the rate of reaction. [Pg.301]

Hydroxy-l-naphthalenyl)ethanone, 9CI. 2-Hydroxy-1-acetonaphthone, SCI. l-Acetyl-2-hydroxynaphthalene [574-19-6]... [Pg.6]

I- l-Hydroxy-2-naphthalenyl)ethanone, 9CI. F-Hydroxy-2 -acetonaphthone. 2-Acetyl- 1-hydroxynaphthalene [711-79-5]... [Pg.6]

Acetyl-l-hydroxynaphthalene,. see A-00026 A-Acetylimidazole, in I-OOOOl A-Acetylmercaptosuccinic anhydride, in... [Pg.967]

See other pages where 1- Acetyl-2-hydroxynaphthalene is mentioned: [Pg.967]    [Pg.315]    [Pg.176]    [Pg.380]    [Pg.380]    [Pg.380]    [Pg.380]    [Pg.404]    [Pg.967]   
See also in sourсe #XX -- [ Pg.33 , Pg.374 ]



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2- Hydroxynaphthalene

Hydroxynaphthalenes

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