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:
Nov. 12, 2024
Filed:
Jun. 07, 2022
Dimethylcyclobutanone compounds, dimethylcyclobutane compounds, and processes for preparing the same
Applicant:
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
Shin-Etsu Chemical Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/62 (2006.01); C07C 45/67 (2006.01); C07C 49/35 (2006.01);
U.S. Cl.
CPC ...
C07C 45/62 (2013.01); C07C 49/35 (2013.01);
Abstract
The present invention provides a process for preparing a dimethylcyclobutane compound of the following general formula (1A), the process comprising reacting a dimethylcyclobutanone compound of the following general formula (2) with a phosphonic ester compound of the following general formula (3) to produce an unsaturated ester compound of the following general formula (4), having a dimethylcyclobutane ring, and subjecting the unsaturated ester compound (4), having a dimethylcyclobutane ring, to a reduction reaction to produce the dimethylcyclobutane compound (1A).