Isobutanol is formed by hydroformylation (reaction with CO/H2 by rhodium catalysis) of 2-propene to methylpropanal and subsequent hydrogenation.
Isobutanol is a congener in whisky, brandy, wine and beer and other spirits.
In the chemical industry it is used as solvent and for the synthesis of plasticizers. His esters are used as perfume and flavourings.