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单词 phenylhydrazone
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phenylhydrazone
phenylhydrazone n. [after German Phenylhydrazon (O. Rudolph 1888, in Ann. der Chem. u. Pharm. 248 99)] any of a class of compounds formed by condensation of an aldehyde or ketone with phenylhydrazine, which are typically crystalline solids and are used to characterize the parent aldehyde or ketone.
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the world > matter > chemistry > organic chemistry > aldehydes or alkanals > [noun] > aldehyde derivatives
acetal1838
hydramide1865
phenylhydrazone1888
hemi-acetal1893
formal1900
1888 Jrnl. Chem. Soc. 54 934 Mannose..is obtained by dissolving the above phenylhydrazone in four parts of hydrochloric acid..cooled with ice and salt.
1966 McGraw-Hill Encycl. Sci. & Technol. (rev. ed.) VII. 62/2 When the starting material is the phenylhydrazone of acetone, the product is 2-methylindole.
1981 J. W. Buttle et al. Chem. (ed. 4) xxiii. 519 Phenylhydrazine forms phenylhydrazones by condensation, but these are not the ultimate products.
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