2-Butanol

2-Butanol
Names
	Preferred IUPAC name Butan-2-ol
	Other names sec-butanol; sec-butyl alcohol; 2-butyl alcohol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

2-Butanol or sec-butanol^[1] is an organic compound. It is one of the types of butanol, an alcohol with the chemical formula C₄H₉OH. It is mostly used as an ingredient to make butanone, an important solvent.

Preparation

2-Butanol can be made by the addition of water (hydration) to 1-butene or 2-butene. The hydration of 1-butene to 2-butanol is predicted by Markovnikov's rule. A strong acid like sulfuric acid is normally used as a catalyst.

2-Butanol is the smallest chiral alcohol, with two stereoisomers.


(R)-2-butanol	(S)-2-butanol

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Names

Preferred IUPAC name Butan-2-ol
Other names sec-butanol sec-butyl alcohol 2-butyl alcohol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references