| 单词 | phenylhydrazone |
| 释义 | > as lemmasphenylhydrazone 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. ΘΚΠ 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. < as lemmas |
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