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. 14, 2017
Filed:
Mar. 13, 2014
Applicant:
Albemarle Corporation, Baton Rouge, LA (US);
Inventor:
Tse-Chong Wu, Baton Rouge, LA (US);
Assignee:
ALBEMARLE CORPORATION, Baton Rouge, LA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 45/00 (2006.01); C07C 45/49 (2006.01);
U.S. Cl.
CPC ...
C07C 45/49 (2013.01); C07C 45/49 (2013.01); C07C 47/542 (2013.01);
Abstract
The present invention is a process for preparing a 4-alkylbenzaldehyde (para-alkylbenzaldehyde). An alkylbenzene, solvated in a solvent comprising at least one aliphatic solvent having in the range of 3 to 15 carbons, is reacted with carbon monoxide, in the presence of an aluminum halide and a hydrogen halide acid. Disproportionation is reduced and proportion of para-alkyl-benzaldehyde is increased with respect to other methods.