| 单词 | methyl ether |
| 释义 | > as lemmasmethyl ether methyl ether n. (a) dimethyl ether, (CH3)2O; (b) any ether in which one of the groups attached to the oxygen atom is a methyl group. ΚΠ 1852 H. Watts tr. L. Gmelin Hand-bk. Chem. VII. 257 Methyl-ether gas..burns with a flame like that of alcohol. 1854 J. Scoffern in Orr's Circle Sci., Chem. 109 Butyric ether and butyric methyl ether. 1926 H. G. Rule tr. J. Schmidt Text-bk. Org. Chem. 119 Methyl ether, CH3.O.CH3, is obtained even more readily under these conditions. 1931 Jrnl. Chem. Soc. 273 The Friedel-Crafts reaction has now been extended to the coupling of malonyl chloride..with methyl ethers of resorcinol. 1967 I. L. Finar Org. Chem. (ed. 5) I. vii. 166 Dimethyl ether (methyl ether) is prepared industrially by passing methanol vapour at 350–400°, and at a pressure of 15 atmospheres, over aluminium phosphate as a catalyst. 1996 Proc. National Acad. Sci. U.S.A. 93 12828/1 MMAS-3 O-methylates this secondary alcohol to form the corresponding methyl ether. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。