Quinacetophenone dimethyl ether

Quaternary ammonium salt, benzoyl-choline chloride and iodide, 30, 10 Quinacetophenone, 31, 90 Quinacetophenone dimethyl ether, 31, 91... [Pg.60]

Quinacetophenone monomethyl ether has been prepared by the methylation of quinacetophenone with dimethyl sulfate and alkali,3 and by the partial demethylation of quinacetophenone dimethyl ether.4 It has also been obtained as a by-product in the preparation of quinacetophenone dimethyl ether.6... [Pg.92]

O-MethykUioH. Quinacetophenone is converted into the dimethyl ether by alternate addition of dimethyl sulfate and aqueous sodium hydroxide to a solution of the substance In 95% ethanol. Anhydrous D-glucose on reaction in aqueous... [Pg.880]

Quinacetophenone is similarly monomethylated with methyl iodide-potassium carbonate, but the dimethyl ether is formed with excess dimethyl sulphate and caustic soda [8]. Methyl-ation of catechol groups can be prevented by carrying out the reaction in the presence of a borate salt. A useful preparation of 3-0-methylgallic acid (17) is based on this principle [33]. [Pg.155]

See also in sourсe #XX -- [ Pg.31 , Pg.91 ]

See also in sourсe #XX -- [ Pg.31 , Pg.91 ]

See also in sourсe #XX -- [ Pg.31 , Pg.91 ]

See also in sourсe #XX -- [ Pg.31 , Pg.91 ]

See also in sourсe #XX -- [ Pg.31 , Pg.91 ]

See also in sourсe #XX -- [ Pg.31 , Pg.91 ]

See also in sourсe #XX -- [ Pg.31 , Pg.91 ]

See also in sourсe #XX -- [ Pg.31 , Pg.91 ]

See also in sourсe #XX -- [ Pg.293 , Pg.294 ]

See also in sourсe #XX -- [ Pg.31 , Pg.91 ]

See also in sourсe #XX -- [ Pg.31 , Pg.91 ]

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