An official website of the United States government

Process for transesterifying α-Ketocarboxylic esters

Patent
US-6222063-B1
Inventor

ZIMMERMANN CURT (AT)

FRIEDHUBER JOHANN (AT)

Assignee
DSM FINE CHEM AUSTRIA GMBH (US)
Country
United States
Dates
  • Priority:
    1998/08/07
  • Grant:
    2001/04/24
Description
This web page summarizes information in PubChem about patent US-6222063-B1. This includes chemicals mentioned, as reported by PubChem contributors, as well as other content, such as title, abstract, and International Patent Classification (IPC) codes. To read more about how this page was constructed, please visit the PubChem patents help page.

1 Abstract

Process for transesterifying alpha-ketocarboxylic esters in an anhydrous alcohol as reaction medium in the presence of tin catalysts, titanium catalysts, zirconium catalysts or lithium catalysts or of acetylacetonates as catalysts.

2 Full Text

3 Important Dates

3.1 Priority Date

1998/08/07

3.2 Filing Date

1999/08/06

3.3 Publication Date

2001/04/24

3.4 Grant Date

2001/04/24

4 Inventor

ZIMMERMANN CURT (AT)

FRIEDHUBER JOHANN (AT)

5 Assignee

DSM FINE CHEM AUSTRIA GMBH (US)

6 Country

United States

7 Linked Chemicals

7.1 PubChem Compounds

7.2 PubChem Substances

8 Patent Family

9 Classification

9.1 IPC

C07C69/716 (inventive)

C07C67/02 (inventive, first)

C07C67/03 (inventive)

C07C69/738 (inventive)

9.2 CPC

C07C67/03 (inventive, first)

Y02P20/582

10 Citations

11 Cited By

12 Similar Patents

13 Information Sources

  1. Google Patents
    LICENSE
    "Google Patents Research Data" by Google, based on data provided by IFI CLAIMS Patent Services and OntoChem, is licensed under a Creative Commons Attribution 4.0 International License.
    https://creativecommons.org/licenses/by/4.0/legalcode
  2. PubChem
CONTENTS