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:
Feb. 25, 2020
Filed:
Sep. 01, 2017
Applicant:
Sabic Global Technologies B.v., Bergen op Zoom, NL;
Inventor:
Jaiprakash Brijlal Sainani, Geleen, NL;
Assignee:
SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 41/46 (2006.01); C07C 29/36 (2006.01); C07C 41/16 (2006.01);
U.S. Cl.
CPC ...
C07C 29/36 (2013.01); C07C 41/16 (2013.01); C07C 41/46 (2013.01); C07C 2603/18 (2017.05);
Abstract
The present invention relates to a novel process for the synthesis of 9,9-bis(hydroxymethyl)fluorene. The syntheses from fluorene to 9,9-bis(hydroxy-methyl)fluorene via a hydroxymethylation and further to 9,9-bis(methoxymethyl)-fluorene via a etherification are known. 9,9-bis(methoxymethyl)fluorene is a compound that is used as an electron donor for Ziegler-Natta catalysts. The present invention is related to an improvement in the synthesis of 9,9-bis(hydroxymethyl)fluorene leading to a decrease in the amount of solvent used and an easier work up while achieving high yield and purity.