Patent ID: 6388151
Filing Date: 2002-05-14
Classification: C07C

Abstract:
The method which comprises:(i) reacting 2-bromo-2-butene with magnesium in a non-interfering solvent, wherein a first reaction mixture containing 2-butene magnesium bromide, magnesium and said non-interfering solvent; (ii) adding an alkyl formate â€ƒto said first reaction mixture, wherein said alkyl formate reacts with said 2-butene magnesium bromide in said first reaction mixture to produce a second reaction mixture containing a compound of formula â€ƒand (iii) adding an aqueous acid of formula wherein R1 is a two to six carbon atom alkyl group to said second reaction mixture, wherein a third reaction mixture containing 3,5-dimethyl-2,5-heptadiene-4-ol in said solvent is produced.