| 释义 |
xylyl Chem.|ˈzaɪlɪl|
[f. xyl-ene + -yl.]
The hypothetical radical (C8H9) of xylene and its derivatives. Hence xylylamine, ˈxylylene, † xylylea (= xylylamine), xyˈlylic a., etc.: see quots.
1862Miller Elem. Chem., Org. vi. §2. (ed. 2) 453 Xylol, C16H10. Nitroxylol, C16H9NO4. Xylylia, C16H11N. 1863Fownes' Chem. (ed. 9) 694 The hydrate of oxide of xylyl..has been observed by Mr. H. Müller. 1868Watts Dict. Chem. V. 1061 Xylyl. C8H9. A monatomic radicle, homologous with phenyl and tolyl, which may be supposed to exist in xylene..and its derivatives. Ibid., Xylylamine..a base..(not yet obtained), related to benzylamine..as xylidine..to toluidine. Ibid., Xylylene. C8H8. A diatomic radicle related to xylyl, C8H9, in the same way as ethylene to ethyl. Ibid. 1062 Xylylic acid. C9H10O2 = C6H3(CH3)2.CO2H{ddd}homologous with benzoic and toluic acids. Ibid., Xylylic acetate, chloride, &c. Syn. with Toluylic Acetate, Chloride, &c. |