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:
Sep. 08, 2020
Filed:
Oct. 19, 2018
Sabic Global Technologies B.v., Bergen op Zoom, NL;
Shirish Shrikant Abhyankar, Bangalore, IN;
Abbas-Alli Ghudubhai Shaikh, Bangalore, IN;
Sivalingam Gunasekaran, Bangalore, IN;
Jaiprakash Brijlal Sainani, Bangalore, IN;
SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom, NL;
Abstract
The present invention relates to a process for synthesis of a compound according to Formula (A): wherein Ris a substituted or unsubstituted aryl having 6 to 20 carbon atoms; preferably substituted or unsubstituted phenyl; Ris a straight or branched alkyl having 1 to 12 carbon atoms; and Ris a straight or branched alkyl having 1 to 12 carbon atoms; starting from a di-keto compound according to Formula (B) wherein Ris as shown above, which compound is converted into a ketoenamine compound according to Formula (C) wherein Rand Rare as shown above, which ketoenamine compound is then reduced to an amino alcohol according to Formula (D), wherein Rand Rare as shown above, that is subsequently converted into a compound according to Formula (A): characterized in that the ketoenamine is reduced into an amino alcohol using a nickel aluminium alloy in an aqueous solution of an inorganic base.