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:
Jun. 14, 2022
Filed:
Oct. 31, 2018
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Daniel Saelinger, Ludwigshafen, DE;
Philip Muelheims, Ludwigshafen, DE;
Helmut Zech, Ludwigshafen, DE;
Roland Goetz, Ludwigshafen, DE;
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 41/16 (2006.01); C07C 43/176 (2006.01); C07C 41/01 (2006.01); C07C 43/166 (2006.01);
U.S. Cl.
CPC ...
C07C 41/16 (2013.01); C07C 41/01 (2013.01); C07C 43/166 (2013.01); C07C 43/176 (2013.01);
Abstract
The present invention relates to a process for preparing 4-chlorobenzyl propargylether comprising a step (a) of reacting 4-chlorobenzyl chloride with propargyl alcohol in the presence of a base and a phase transfer catalyst, wherein the reaction mixture comprises at least two phases, wherein one phase is an organic phase and one phase is an aqueous phase.