Patents by Inventor Joerg Wilken

Joerg Wilken 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).

  • Publication number: 20050234261
    Abstract: A process for producing cinnamic acids and alkyl esters thereof, particularly, fluorinated cinnamic acids and alkyl esters thereof. The process comprises reacting the appropriate bromobenzene and acrylic acid ester in a palladium-catalyzed HECK reaction under JEFFREY conditions using a phase-transfer catalyst (PTC) and an organic base to produce the corresponding cinnamic acid ester, and then preferably hydrolyzing the resulting ester under appropriate basic conditions, e.g. in the presence of a hydroxide, and precipitating the corresponding cinnamic acid product.
    Type: Application
    Filed: April 14, 2004
    Publication date: October 20, 2005
    Inventors: Joerg Wilken, Andreas Kanschik-Conradsen, Suzanne Wassmann-Wilken
  • Publication number: 20050059835
    Abstract: Provided are methods of producing refined silane compounds comprising providing a starting composition comprising a silane ester and an acidic halide and contacting the starting composition with an alkali metal salt selected from the group consisting of alkali metal salts derived from amides, imides, oxazolidinones, amines, sulfonamides, and combinations of two or more thereof.
    Type: Application
    Filed: September 10, 2004
    Publication date: March 17, 2005
    Applicant: Honeywell International Inc.
    Inventors: Suzanne Wassmann-Wilken, Christian Werner, Joerg Wilken, Andreas Kanschik-Conradsen
  • Publication number: 20040110957
    Abstract: In a process comprising synthesizing pyranes including [R—(R*,R*)]-N-[3-[1-[5,6-dihydro-4-hydroxy-2-oxo-6-(2-phenylethyl)-6-propyl-2H-pyran-3-yl]propyl]phenyl]-5-(trifluoromethyl)-2-pyridinesulfonamide the present invention comprises the improvements comprising: (a) providing a racemic mixture of 3-hydroxy-3-(2-phenylethyl)-hexanoate ethyl acetate by reacting said 1-phenyl-hexan-3-one with ethylbromoacetate under Reformatsky conditions; and (b) separating (R)-3-hydroxy-3-(2-phenylethyl)-hexanoic acid in enantiomeric excess by saponification and reverse resolution of the racemate of step (a) to produce a resolved product. In addition, the present invention comprises a reverse resolution process for separating an enantiomer from a mixture of enantiomers.
    Type: Application
    Filed: September 12, 2003
    Publication date: June 10, 2004
    Applicant: Honeywell International, Inc.
    Inventors: Joerg Wilken, Frank Nerenz, Andreas Kanschik-Conradsen