To provide a method for producing a higher α,β-unsaturated alcohol in which engineering is easily performed.
This method for producing the alcohol represented by formula Ia or Ib [R1 is a 1-4C alkyl group; R2 is a group of formula II (R3 is hydrogen or a 1-4C alkyl group; a broken line is an additional double bond; and n is 0 or 1-6), hydrogen, or a saturated alkyl group] comprises (a) mono-ethynylating a ketone or formula: R1-CO-CH2-R2 in ammonia solution by using a basic catalyst, (b) optionally hydrogenating the alcohol of formula Ib on a Pd catalyst, and (c) subjecting the hydrogenated product to a purification distillation, and if necessary, reacting Ia or Ib produced by the steps (a) to (c) or by the steps (a) and (c) with an alkyl acetoacetate of formula IV [R5 is a 1-4C alkyl group], or a diketene to provide a methyl ketone, and using the ketone as a starting material in the steps (a) to (c).
HENKELMANN JOCHEM
KINDLER ALOIS
ETZRODT HEINZ
OOST CARSTEN
STUTZ SUSANNE
TRAGUT CHRISTIAN
BOCKSTIEGEL BERNHARD
REIMER KLAUS
STROEZEL MANFRED
DOBLER WALTER
