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Amido Group Modifications

The fact that both modifications of dimethyl- and diethyl-saffranine yield diazo-compounds, gives a certain proof of the presence of two amido-groups in saffraniue. [Pg.184]

Sulfamic acid, NH2SO3H, is an ammonoaquosulfuric acid in which one of the hydroxyl groups of sulfuric acid has been replaced by the isosteric amido group. It is prepared commercially by the interaction of fuming sulfuric acid and urea. This method is not readily adaptable to laboratory preparation on a small scale. Consequently, the sulfur dioxide-hydroxylamine reaction is recom-mended.H Sulfamic acid may also be obtained by the action of sulfur dioxide upon certain compounds which yield hydroxylamine such as acetoxime. The recommended procedures are modifications of older processes and involve the use of sulfur dioxide under pressure upon aqueous solutions of hydroxylammonium salts and compounds yielding hydroxylamine. [Pg.176]

See other pages where Amido Group Modifications is mentioned: [Pg.29]    [Pg.29]    [Pg.188]    [Pg.188]    [Pg.14]    [Pg.875]    [Pg.590]    [Pg.204]    [Pg.188]    [Pg.229]    [Pg.186]    [Pg.7]    [Pg.7666]    [Pg.110]    [Pg.13]    [Pg.298]    [Pg.221]    [Pg.89]    [Pg.304]    [Pg.280]    [Pg.500]    [Pg.220]    [Pg.292]    [Pg.856]    [Pg.714]    [Pg.42]    [Pg.166]    [Pg.227]    [Pg.291]    [Pg.344]    [Pg.125]    [Pg.1005]    [Pg.284]    [Pg.221]    [Pg.1114]    [Pg.193]    [Pg.257]    [Pg.234]    [Pg.372]    [Pg.378]    [Pg.590]    [Pg.95]    [Pg.115]    [Pg.123]    [Pg.166]    [Pg.290]    [Pg.480]    [Pg.56]   


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