ethoxiden.
/ᵻˈθɒksʌɪd/, /ɛˈθɒksʌɪd/, U.S. /ɛˈθɑkˌsaɪd/ Chemistry.
An alkoxide containing the anion C2H5O− or the group –OC2H5, typically formed by the reaction of ethanol with a metal. Also: the anion C2H5O−. Cf. ethylate n.
ΚΠ
1852 Philos. Trans. (Royal Soc.) 142 443 (table) Ethoxide of tin.
1890 Jrnl. Chem. Soc. 58 858 Phosphorus trichloride is gradually added to finely divided sodium ethoxide, covered with ether.
1909 E. I. Lewis Elements Org. Chem. ii. 9 The formation of the ethoxide and its hydrolysis in solution seem to indicate that alcohol has acidic properties.
1946 J. V. Sherman & S. L. Sherman New Fibers xv. 292 Saponification [of cellulose esters] may be conducted..by the employment of caustic soda, potassium or sodium methoxides or ethoxides, organic bases, etc.
1977 J. March Adv. Org. Chem. (ed. 2) xviii. 1002 α-Amino ketones can be prepared by treatment of ketoxime tosylates with a base such as ethoxide ion or pyridine.
2009 P. Wepplo Handbk. Org. Chem. Mechanisms ix. 85 The ethanol can react with sodium hydride to generate more ethoxide to catalyze the reaction.
This is a new entry (OED Third Edition, March 2014; most recently modified version published online March 2022).
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n.1852