Alkoxide Definition in Chemistry

What Is an Alkoxide?

An alkoxide forms when an alcohol is reacted with a metal.
An alkoxide forms when an alcohol is reacted with a metal. Martin Elstermann / EyeEm / Getty Images

An alkoxide is an organic functional group formed when a hydrogen atom is removed from an hydroxyl group of an alcohol when reacted with a metal.

Alkoxides have the formula RO- where R is the organic substituent from the alcohol and are strong bases.

Example

Sodium reacting with methanol (CH3OH) reacts to form the alkoxide sodium methoxide (CH3NaO).