Ureas Sentence Examples

ureas

  • Mez (ibid., 1901, 35, p. 242) on substituted ureas, illustrate this point.

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  • They are readily hydrolysed by water, and combine with bases to form alkyl ureas, and with alcohols to form carbamic esters.

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  • The symmetrically substituted ureas are generally tasteless, while the asymmetrical derivatives are sweet.

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  • Investigation of the cyanic ethers (1848) yielded a class of substances which opened out a new field in organic chemistry, for, by treating those ethers with caustic potash, he obtained methylamine, the simplest organic derivative of ammonia (1849), and later (1851) the compound ureas.

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