The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 30, 2013
Filed:
May. 10, 2011
Dario Veghini, Wohlen, CH;
Markus Bicker, Visp, CH;
Miguel Angel Caraucán Dávila, Birgisch, CH;
Golo Heckmann, Ingelheim, DE;
Thomas Ward, St-Blaise, CH;
Christophe Malan, Peseux, CH;
Julien Pierron, Neuchâtel, CH;
Antonio Zanotti-gerosa, Cambridge, GB;
Hans Nedden, Sawston, GB;
Laleh Jafarpour, Milford, MA (US);
Dario Veghini, Wohlen, CH;
Markus Bicker, Visp, CH;
Miguel Angel Caraucán Dávila, Birgisch, CH;
Golo Heckmann, Ingelheim, DE;
Thomas Ward, St-Blaise, CH;
Christophe Malan, Peseux, CH;
Julien Pierron, Neuchâtel, CH;
Antonio Zanotti-Gerosa, Cambridge, GB;
Hans Nedden, Sawston, GB;
Laleh Jafarpour, Milford, MA (US);
Lonza Ltd, Basel, CH;
Abstract
The invention relaters to a process for the production of an (S)- or (R)-4-halo-3-hydroxybutyrate, comprising reacting a 4-haloacetoacetate with hydrogen in the presence of a solvent, the solvent being a solvent mixture, which comprises a first solvent and a second solvent, wherein the first solvent is an aliphatic alcohol, preferably methanol, ethanol or propanol, and the second solvent is aprotic and comprises at least one oxygen atom; and