Patents by Inventor Lukas Hintermann

Lukas Hintermann 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).

  • Catalytic halogenation of activated methylene and methine compounds
    Patent number: 6472345
    Abstract: A process for the halogenation of activated methylene and methine compounds with at least equimolar amounts of an electrophilic halogenation reagent, which comprises reacting said activated methylene and methine compounds in the presence of catalytic amounts of a titanium compound of the formula I or of a titanium compound of the formula II R1TiX1X2X3  (I), R2R3TiX1X2  (II), in which R1 is chlorine, bromine or iodine, a substituted or unsubstituted cyclopentadienyl or indenyl, and X1, X2 and X3 are, independently of one another, chlorine, bromine or iodine, or X1, X2 and X3 are an organic sulfonate group where R1 is a substituted or unsubstituted cyclopentadienyl or indenyl; R2 and R3 are a substituted or unsubstituted cyclopentadienyl or indenyl, R2 and R3 together are a substituted or unsubstituted and bridged or unbridged biscyclopentadienyl or bisindenyl, or R2 and R3 together are a substituted or unsubstituted 1,3-, 1,4- or 1,5-diolate, and X1, and X2 are, independently of one
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: October 29, 2002
    Assignee: Solvias AG
    Inventors: Lukas Hintermann, Antonio Togni
  • Catalytic halogenation of activated methylene and methine compounds
    Publication number: 20020026067
    Abstract: A process for the halogenation of activated methylene and methine compounds with at least equimolar amounts of an electrophilic halogenation reagent, which comprises reacting said activated methylene and methine compounds in the presence of catalytic amounts of a titanium compound of the formula I or of a titanium compound of the formula II
    Type: Application
    Filed: May 2, 2001
    Publication date: February 28, 2002
    Inventors: Lukas Hintermann, Antonio Togni