The amino-oxazolines are known as alkylene--areas and are formed by the action of potassium cyanate on the hydrobromides of the bromalkylamines (S.
Amidourea, or semicarbazide, NH 2 CO NH NH 2, is best prepared from hydrazine sulphate and potassium cyanate (J.
To this problem there was added another in about the third decade of the 19th century - namely, to determine the manner in which the atoms composing the radical were combined; this supplementary 'requisite was due to the discovery of the isomerism of silver fulminate and silver cyanate by Justus von Liebig in 1823, and to M.
Stein, Ann., 1869, 150, p. 242), or from ammonium hypochlorite and potassium cyanate (A.
The hydrochloride with potassium cyanate C(NH 2): N gives hydrazothio-carbonamide, NH2 C0 NH NH CS NH2.