Patents by Inventor Werner Steitz

Werner Steitz 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).

  • Mehtod for producing 3-phenyl(thio)uracils and 3-phenyldithiouracils
    Publication number: 20060293520
    Abstract: A process is described for preparing 3-phenyl(thio)uracils or 3-phenyldithiouracils of the formula I, by reacting a phenyl iso(thio)cyanate of the formula II with an enamine of the formula III and, if appropriate, in a further step, the resulting 3-phenyl(thio)uracil or 3-phenyldithiouracil of the formula I where R1=R1a, when R1=hydrogen, is reacted with an aminating agent of the formula IV to give 3-phenyl(thio)uracils or 3-phenyldithiouracils of the formula I where R1=amino where the variables R1, R1a, R2, R3, R4, X1, X2, X3, Ar, A and L1 are each as defined in claim 1.
    Type: Application
    Filed: December 1, 2004
    Publication date: December 28, 2006
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Gerhard Hamprecht, Michael Puhl, Bernd Wolf, Michael Keil, Robert Reinhard, Werner Steitz, Guido Mayer