Aromatic Arsenic Compounds, II, The Amidesand Alkyl Amides of N--Arylglycine Arsonic Acids, J.
NH2, which may be considered as derived from the acid-amides by replacement of oxygen by the divalent imino (=NH) group.
They are monacid bases, which are not very stable; they readily take up the elements of water (when boiled with acids or alkalies), yielding amides and ammonia.
On the preparation of the substituted amides from the corresponding sodamides see A.
Of these compounds, the primary amides of the type R.
Amides are most abundant in young plants during the period of their most active growth, and as the plant ripens the amides seem to be largely converted into albuminoids.
As the nearest derivatives of ammonia, the amidestreated with alkalis yield ammonia and form the salt of the acid.
The majority of amides corresponding to acids have a composition RNH{2}, and therefore recombine with water with great ease even when simply boiled with it, and with still greater facility in presence of acids or alkalis.
Thus in the majority of cases amides easily pass into ammoniacal salts, but they differ essentially from them.
Such, for instance, are the amides of benzoic, formic, and many other organic acids.
This reaction is employed for transforming many nitrogenous organic substances having the properties of amides into their corresponding hydroxides.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "amides" in a variety of sentences. We hope that you will now be able to make sentences using this word.
