alkoxide: meaning, definition, pronunciation and examples
C2 / Very Rare / TechnicalHighly technical, formal, scientific
Quick answer
What does “alkoxide” mean?
A chemical compound containing an organic group bonded to an oxygen atom with a negative charge (R-O⁻ M⁺), typically formed by the reaction of an alcohol with an active metal.
Audio
Pronunciation
Definition
Meaning and Definition
A chemical compound containing an organic group bonded to an oxygen atom with a negative charge (R-O⁻ M⁺), typically formed by the reaction of an alcohol with an active metal.
In organic chemistry, alkoxides are important as strong bases and nucleophiles, commonly used in synthesis (e.g., Williamson ether synthesis), as catalysts, and as precursors for metal-organic frameworks (MOFs).
Dialectal Variation
British vs American Usage
Differences
No lexical differences; minor potential spelling variations in related descriptive terms (e.g., catalysed/catalyzed).
Connotations
Identical; purely technical term.
Frequency
Equally rare and equally used only within the chemistry domain in both varieties.
Grammar
How to Use “alkoxide” in a Sentence
[Alkoxide] + of + [metal] (e.g., alkoxide of sodium)[Adjective] + alkoxide (e.g., polymeric alkoxide)to prepare/form/generate [alkoxide]Vocabulary
Collocations
Examples
Examples of “alkoxide” in a Sentence
adjective
British English
- The alkoxide-catalysed reaction proceeded cleanly.
- They studied the alkoxide precursor for the ceramic material.
American English
- The alkoxide-catalyzed reaction proceeded cleanly.
- They studied the alkoxide precursor for the ceramic material.
Usage
Meaning in Context
Business
Not used.
Academic
Used in advanced chemistry research papers, textbooks, and lectures.
Everyday
Virtually never used.
Technical
Core term in synthetic organic chemistry, organometallic chemistry, and materials science.
Vocabulary
Synonyms of “alkoxide”
Neutral
Weak
Vocabulary
Antonyms of “alkoxide”
Watch out
Common Mistakes When Using “alkoxide”
- Mispronouncing as 'al-koks-side' (correct: 'al-kok-side').
- Using it as a countable noun without specifying the metal (e.g., 'add an alkoxide' – better: 'add the sodium alkoxide').
- Confusing it with a hydroxide (M-OH).
FAQ
Frequently Asked Questions
No, it is a highly specialised term used almost exclusively in chemistry.
No, the alkoxide anion (RO⁻) is always paired with a counterion, typically a metal cation like Na⁺ or K⁺, to form a salt.
A hydroxide is HO⁻, while an alkoxide is RO⁻, where R is an organic alkyl group. Alkoxides are generally stronger bases.
By reacting an alcohol (R-OH) with an active metal (e.g., sodium) or a strong base like sodium hydride (NaH): R-OH + Na → R-O⁻Na⁺ + ½H₂.
A chemical compound containing an organic group bonded to an oxygen atom with a negative charge (R-O⁻ M⁺), typically formed by the reaction of an alcohol with an active metal.
Alkoxide is usually highly technical, formal, scientific in register.
Alkoxide: in British English it is pronounced /alˈkɒksaɪd/, and in American English it is pronounced /ælˈkɑːksaɪd/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: 'ALK' like alcohol + 'OXIDE' like oxygen compound. An alkoxide is what you get when an alcohol loses its acidic hydrogen to a metal, becoming a negative ion (oxide-like).
Conceptual Metaphor
A DEPROTONATED ALCOHOL IS A REACTIVE ION. The alcohol is 'activated' by removing a proton, turning it from a mild substance into a powerful chemical tool.
Practice
Quiz
What is the primary characteristic role of an alkoxide in organic reactions?