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2,6-Dimethyl-4-heptanone diisobutyl

The older methods have been replaced by methods which require less, if any, excess sulfuric acid. For example, sulfonation of naphthalene can be carried out in tetrachloroethane solution with the stoichiometric amount of sulfur trioxide at no greater than 30°C, followed by separation of the precipitated l-naphthalenesulfonic acid the filtrate can be reused as the solvent for the next batch (14). The purification of 1-naphthalenesulfonic acid by extraction or washing the cake with 2,6-dimethyl-4-heptanone (diisobutyl ketone) or a C-1—4 alcohol has been described (15,16). The selective insoluble salt formation of 1-naphthalenesulfonic acid in the sulfonation mixture with 2,3-dimethyl aniline has been patented (17). [Pg.490]

Dimethyl-4-heptanone (diisobutyl ketone) Dimethyl sulphate N,N-Dimethyl-p-toluidine Dimethylamine... [Pg.367]

See other pages where 2,6-Dimethyl-4-heptanone diisobutyl is mentioned: [Pg.912]    [Pg.914]    [Pg.322]    [Pg.2398]    [Pg.314]    [Pg.2330]    [Pg.986]    [Pg.301]    [Pg.2174]    [Pg.353]    [Pg.2551]    [Pg.342]    [Pg.2499]    [Pg.341]    [Pg.352]    [Pg.2621]    [Pg.314]    [Pg.2333]   


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2 Heptanone

2.6- dimethyl-4-heptanone

Diisobutyl

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