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When cinchonine is distilled with solid potassium hydrate, it yields pyrrol and bases of both the pyridine and quinoline series. Cinchonidine, when heated with potassium hydrate, yields quinoline also, and with nitric acid the same products as cinchonine. Strychnine has been found to be a tertiary amine. When distilled with potassium hydrate, quinoline is formed.
Its meythl ester, which can be formed from it, is codeine, one of the accompanying alkaloids of opium. Besides the methyl derivative, however, others are possible, and several have been recently prepared, giving rise to a class of artificial alkaloids known as codeines. Morphine, rapidly distilled over zinc dust, yields phenanthren, trimethyl-amine, pyrrol, pyridine, quinoline, and other bases.
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