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:
May. 12, 2015
Filed:
Jun. 27, 2012
Applicants:
Masashi Takimoto, Shizuoka, JP;
Tomonori Yamaoka, Shizuoka, JP;
Yoshio Onogawa, Shizuoka, JP;
Inventors:
Assignee:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/42 (2006.01); C07C 45/43 (2006.01); C07C 47/55 (2006.01);
U.S. Cl.
CPC ...
C07C 45/42 (2013.01); C07C 45/43 (2013.01); C07C 47/55 (2013.01);
Abstract
A process for obtaining an industrially useful 2-chloromethylbenzaldehyde-containing liquid composition at a high yield is provided. More specifically, a process for producing 2-chloromethylbenzaldehyde comprising step (A) of mixing 1-dichloromethyl-2-chloromethylbenzene and sulfuric acid having a concentration of 84.5% by weight or more; and step (B) of mixing a mixture obtained in step (A) and water is provided.