Patents by Inventor Heinrich Pasedach

Heinrich Pasedach has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Preparation of carbonyl compounds
    Patent number: 4260829
    Abstract: Carbonyl compounds R.sup.1 --CHR.sup.2 --CHR.sup.3 --CR.sup.4 O (I, R.sup.1 =H or an organic radical; R.sup.2 -R.sup.4 =H or C.sub.1 -C.sub.4 -alkyl) are prepared by selective hydrogenation of the .alpha.,.beta.-unsaturated carbonyl compounds R.sup.1 --CR.sup.2 =CR.sup.3 --CR.sup.4 O (II) in the liquid phase by means of hydrogen in the presence of a palladium catalyst and of from 15 to 50% by weight, based on (II), of a tertiary amine.
    Type: Grant
    Filed: August 17, 1979
    Date of Patent: April 7, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Horner, Axel Nissen, Peter R. Laurer, Matthias Irgang, Heinrich Pasedach
  • Manufacture of 2-methyl-2-hepten-6-one
    Patent number: 4173588
    Abstract: An improved process for the manufacture of 2-methyl-2-hepten-6-one by reacting an alkyl acetoacetate with 2-methyl-3-buten-2-ol in the presence of an organic aluminum compound such as aluminum trialcoholate, aluminum triacetoacetate, aluminum alkylacetoacetate or aluminum triaryloxylate. 2-Methyl-2-hepten-6-one is an intermediate for the manufacture of vitamins.
    Type: Grant
    Filed: November 3, 1977
    Date of Patent: November 6, 1979
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinrich Pasedach, Rudolf Mohr, Axel Nissen
  • Production of 2,3,6-trimethylphenol
    Patent number: 4128728
    Abstract: A process for the production of 2,3,6-trimethylphenol in which diethyl ketone is reacted in the presence of a basic reagent with crotonaldehyde or methyl vinyl ketone (or a compound which in the presence of a basic reagent is converted into crotonaldehyde or methyl vinyl ketone) and the 2,5,6-trimethyl-2-cyclohexen-1-one or 2,3,6-trimethyl-2-cyclohexen-1-one formed is dehydrogenated.
    Type: Grant
    Filed: March 4, 1969
    Date of Patent: December 5, 1978
    Assignee: Badische Anilin- & Soda-Fabrik Aktiengesellschaft
    Inventors: Lothar Arnold, Heinrich Pasedach, Horst Pommer
  • Manufacture of d,l-methol
    Patent number: 3960970
    Abstract: Manufacture of piperitenone by mixing excess mesityl oxide with 10 to 70% by weight aqueous potassium hydroxide solution, heating the mixture to a temperature of between 20.degree.C and the boiling point and introducing the methyl vinyl ketone into the heated mixture. d,1-methol is obtained directly, or via a mixture of methone and isomenthone, from the piperitenone which is obtained in good yield.
    Type: Grant
    Filed: February 19, 1974
    Date of Patent: June 1, 1976
    Assignee: BASF Aktiengesellschaft
    Inventors: Heinrich Pasedach, Albrecht Friederang