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:
Jan. 17, 2023
Filed:
Dec. 15, 2020
Applicant:
Fudan University, Shanghai, CN;
Inventors:
Fener Chen, Shanghai, CN;
Dang Cheng, Shanghai, CN;
Minjie Liu, Shanghai, CN;
Meifen Jiang, Shanghai, CN;
Zedu Huang, Shanghai, CN;
Zexu Wang, Shanghai, CN;
Jiaqi Wang, Shanghai, CN;
Assignee:
Fudan University, Shanghai, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J 19/00 (2006.01); C07C 227/04 (2006.01); C07C 229/22 (2006.01);
U.S. Cl.
CPC ...
C07C 227/04 (2013.01); B01J 19/0093 (2013.01); B01J 2219/0086 (2013.01); B01J 2219/00869 (2013.01); B01J 2219/00889 (2013.01); C07C 229/22 (2013.01);
Abstract
A method for preparing L-carnitine using a micro-reaction system. (R)-4-halo-3-hydroxybutyrate was subjected to quaternization and hydrolysis in an aqueous trimethylamine solution in the presence of an inorganic base in a micro-channel reactor to produce the L-carnitine.