Hydroxy,2-acetonaphthone

The spectroscopy and dynamics of the complexes have also been found to depend on the nature of the cage (Fig. 7.3) [83, 84]. Compared to the observation using water or tetrahydrofuran (considered as a solvent with a polarity comparable to that of CD) the following picture has been provided. Due to the small size of the a- and fi-CD cages, the rotation of the protonated acetyl group of the guest is 

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Hydroxy-2-acetonaphthone (3-Aceto-2-no/phtml, 2 hydroxy-i-acetylnaphthdlene, methyl Z-hydroxy-2-naphtkyl ketone). 

Electrochemistry offers new routes to the production of several commercially relevant a-arylpropionic acids, used as non-steroidal anti-inflammatory agents (NSAI) [178,182]. A preparative method based on sacrificial Al-electrodes has been set up for the electrocarboxylation of ketones [117,183-187] and successfully applied to the electrocarboxylation of aldehydes, which failed with conventional systems. The electrocarboxylation of 6-methoxy-acetonaphthone to 2-hydroxy-2-(6-methoxynaphthyl)propionic acid, followed by chemical hydrogenation to 2-(6-methoxynaphthyl)-2-propionic acid - one of the most active NSAI acids - has been developed up to the pilot stage [184,186],... 

Evidence very recently presented by O Farrell ei ah [3J indicates that the preferred conformation (XIII) of 2 hydroxy-5,6,7,8-tetra-hydro- 1-acetonaphthone is that which is unfavourable for chelation. However, this is not necessarily inconsistent with our views. Certainly XIII is in equilibrium with that conformation (XIV) which is favourable for chelation. Our argument merely postulates that chelation in a conformation like XIV is favoured by the bulk of the methylene group in the alicyclic ring. 

Hydroxy-5,6,7,8-tetrahydro-2-acetonaphthone [3].—On mixing 32 1 g of aluminium chloride with 35 0 g (0 184 mole) of 5,6,7,8-tetrahydro-2-napbthyl acetate [10] a vigorous reaction occurred immediately, and hydrogen chloride was evolved rapidly. After the initial reaction had subsided, the mixture was heated for 0 5 hour at 130°. The tan solid obtained on decomposition of the cooled mixture... 

Figure 7 Tautomers of Schiff bases derived from /J-diketone (a-c), from l-hydroxy-2-acetonaphthone (d, e) and from...

Hydroxy-l -acetonaphthone (1 - Aceto-2-naphthed, 2-hydroxyA-a/e naphthcile7ie, meth 2-hydroxy-l-TMphthyl ketone)... 

Hydroxy-2-acetonaphthone Z-Aceio-2-naphthol, 2-hydroxy-Q-acetyl-naphOuiUne, methyl 6-hydroxy-2-naphthyl Intone). 

The nuclear magnetic resonance spectra of SchifF bases formed from primary amines and ortAo-hydroxy aldehydes and ketones show that the Schiff bases derived from l-hydroxy-2-acetonaphthone and from 2-hydroxy-1-naphthaldehyde exist as keto amines (7a) although their formation involves loss of most of the resonance energy of one of the aromatic rings When R is a phenyl group, the phenol-imine tautomer (7b) predominates Schiff bases derived from ortho-hydroxy aldehydes and ketones have the phenol-imine structure (8) . Evidently, in such compounds the keto-amine tautomer... 

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

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

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