Abstract:
The invention relates to a method for producing 4-pentenoic acid, at least comprising the oxidation of a mixture (G) containing 4-pentenal, 3-methyl-2-butanone and cyclopentene oxide and to the use of a mixture (G) containing 4-pentenal, 3-methyl-2-butanone and cyclopentene oxide for producing 4-pentenoic acid. The invention also relates to the mixture (G) which is obtained as an auxiliary product from the oxidation of cyclopentene to cyclopentanone by means of dinitrogen monoxide.
Abstract:
The invention relates to a method for producing cyclopentanone. Said method comprises the step of reacting a mixture (G1), which contains at least cyclopentene, with a mixture (G2), which contains at least dinitrogen monoxide. The reaction is carried out in at least one reactor (R1) having channels with a diameter in the range of 0.1 mm to 50 mm, the reactor comprising at least two zones (Z1) and (Z2) having channels with different diameters and the diameters of the channels of zone (Z1) being smaller than the diameter of the channels of zone (Z2).
Abstract:
Process for producing (meth)acrylic esters (F) of alcohols (A) having at least one epoxy group, in which at least one alcohol (A) having at least one epoxy group is esterified in the presence of at least one enzyme (E) with (meth)acrylic acid (S) or transesterified with at least one (meth)acrylic ester (D), wherein in the case of transesterification, the alcoholic leaving group is stable under the reaction conditions.