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. 07, 2020
Filed:
Sep. 14, 2016
Applicant:
Givaudan, S.a., Vernier, CH;
Inventors:
Fridtjof Schröder, Hettlingen, CH;
Marcel Steck, Schwerzenbach, CH;
Assignee:
Givaudan, S.A., Vernier, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 2/86 (2006.01); C07C 241/00 (2006.01); C07C 13/04 (2006.01); C07C 243/06 (2006.01);
U.S. Cl.
CPC ...
C07C 2/86 (2013.01); C07C 241/00 (2013.01); C07C 13/04 (2013.01); C07C 243/06 (2013.01); C07C 2601/02 (2017.05);
Abstract
A process of converting a carbon-carbon double bond on a substrate into a cyclopropane ring, which method comprises the step of treating the substrate with a N-alkyl-N-nitroso compound, a transition metal catalyst and an aqueous base, wherein the N-alkyl-N-nitroso compound is formed by reacting an alkyl amine with an alkali metal nitrite in the presence of a mono-basic or di-basic acid, or a mixture thereof, and wherein the N-alkyl-N-nitroso compound is not distilled before it is mixed with the substrate, catalyst and base.