alkoxiden.

Brit.

/alˈkɒksʌɪd/, U.S.

/ælˈkɑkˌsaɪd/

Forms: 1800s– alkoxid, 1800s– alkoxide.

Origin: Formed within English, by compounding. Etymons: alkyl n., oxide n.

Etymology: < alk- (in alkyl n.) + oxide n. Compare hydroxide n., methoxide n.

Chemistry.

Any of a class of salt-like organic compounds containing anions of the form RO⁻, where R is an alkyl group, typically formed by the reaction of alcohols with metals. Also: any compound containing a group —OR bonded directly to a metal atom.The simplest alkoxide ions are methoxide, CH₃O⁻, and ethoxide, C₂H₅O⁻.

ΚΠ

1889 Cent. Dict. Alkoxid, alkoxide, a compound in which alcohol unites with a metallic base. The base replaces hydrogen in the alcohol hydroxyl: as CH₃ONa, sodium alkoxid.

1944 Science 24 Mar. 9 Reduction with aluminum alkoxides (the Meerwein-Ponndorf-Verley reduction).

1967 I. L. Finar Org. Chem. (ed. 5) I. vi. 149 Alkoxides are white deliquescent solids, readily soluble in water with hydrolysis.

1984 N. N. Greenwood & A. Earnshaw Chem. of Elements (1986) v. 144 Alkylberyllium alkoxides (RBeOR') can be prepared from BeR₂ by a variety of routes.

2007 Jrnl. Materials Processing Technol. 182 382/2 Due to the high electropositive nature of transition-metal atoms, transition-metal alkoxides are reactive.

This entry has been updated (OED Third Edition, September 2009; most recently modified version published online December 2021).

单词	alkoxide
释义	alkoxiden. Brit. /alˈkɒksʌɪd/, U.S. /ælˈkɑkˌsaɪd/ Forms: 1800s– alkoxid, 1800s– alkoxide. Origin: Formed within English, by compounding. Etymons: alkyl n., oxide n. Etymology: < alk- (in alkyl n.) + oxide n. Compare hydroxide n., methoxide n. Chemistry. Any of a class of salt-like organic compounds containing anions of the form RO⁻, where R is an alkyl group, typically formed by the reaction of alcohols with metals. Also: any compound containing a group —OR bonded directly to a metal atom.The simplest alkoxide ions are methoxide, CH₃O⁻, and ethoxide, C₂H₅O⁻. ΚΠ 1889 Cent. Dict. Alkoxid, alkoxide, a compound in which alcohol unites with a metallic base. The base replaces hydrogen in the alcohol hydroxyl: as CH₃ONa, sodium alkoxid. 1944 Science 24 Mar. 9 Reduction with aluminum alkoxides (the Meerwein-Ponndorf-Verley reduction). 1967 I. L. Finar Org. Chem. (ed. 5) I. vi. 149 Alkoxides are white deliquescent solids, readily soluble in water with hydrolysis. 1984 N. N. Greenwood & A. Earnshaw Chem. of Elements (1986) v. 144 Alkylberyllium alkoxides (RBeOR') can be prepared from BeR₂ by a variety of routes. 2007 Jrnl. Materials Processing Technol. 182 382/2 Due to the high electropositive nature of transition-metal atoms, transition-metal alkoxides are reactive. This entry has been updated (OED Third Edition, September 2009; most recently modified version published online December 2021). < n.1889
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