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:
Jul. 22, 2025
Filed:
Oct. 08, 2020
Applicant:
Piramal Pharma Limited, Mumbai, IN;
Inventors:
Changdev Raut, Mumbai, IN;
Ajay Kumbhar, Mumbai, IN;
Tanaji Jadhav, Mumbai, IN;
Ganesh Wagh, Mumbai, IN;
Ashutosh Jagtap, Mumbai, IN;
Sivakumar Rallapalli, Mumbai, IN;
Assignee:
PIRAMAL PHARMA LIMITED, Mumbai, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 317/36 (2006.01); B01J 27/08 (2006.01); C07D 317/40 (2006.01);
U.S. Cl.
CPC ...
C07D 317/36 (2013.01); B01J 27/08 (2013.01);
Abstract
The present invention relates to an improved process for 4-(Hydroxymethyl)-5-methyl-1,3-dioxol-2-one (I). The process involves reaction of compound of formula (II) with sodium acetate in presence of catalytic amount of potassium iodide in dimethyl formamide solvent at 25-30° C. to give 5-methyl-2-oxo-1,3-dioxol-4-yl)methyl acetate (IV) which was further Acid hydrolysed by IPA·HCl in Isopropyl alcohol solvent to yield 4-(hydroxymethyl)-5-methyl-1,3-dioxol-2-one (I).