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:
Jun. 23, 1992
Filed:
Apr. 19, 1991
Paul H Briner, Canterbury, GB;
Shell Research Limited, , GB;
Abstract
The invention provides a process for the preparation of cyclic ketones of the general formula ##STR1## in which R represents an optionally substituted alkyl or cycloalkyl group and R.sup.1 and R.sup.2 independently represent an optionally substituted alkyl, cycloalkyl or aryl group, which comprises heating a compound of the general formula ##STR2## in which X represents a chlorine or bromine atom and R is as defined above, with a compound of the general formula ##STR3## in which R.sup.1 and R.sup.2 are as defined above, in the presence of an organic acid. Certain cyclic ketones of formula (I) are useful as intermediates in the preparation of certain fungicidally active cyclopentane derivatives.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile