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:
Oct. 22, 2013
Filed:
May. 12, 2009
Applicants:
Werner Bonrath, Freiburg, DE;
Rolf Kuenzi, Basel, CH;
Inventors:
Werner Bonrath, Freiburg, DE;
Rolf Kuenzi, Basel, CH;
Assignee:
DSM IP Assets B.V., Heerlen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/00 (2006.01); C07C 43/303 (2006.01); C07C 41/54 (2006.01);
U.S. Cl.
CPC ...
Abstract
Allyl and propargyl ethers of the formula X—C(R)(R)—O—C(CH)(R)—OCH(I), wherein X is an ethynyl or vinyl group, Ris methyl or ethyl, Ris a saturated or unsaturated linear or cyclic aliphatic hydrocarbon residue and Ris methyl or ethyl, a method for their preparation and their use in the manufacture of β-ketoallenes, α,β-unsaturated carbonyl compounds and γ,δ-unsaturated ketones.