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:
Sep. 14, 1982
Filed:
Apr. 18, 1980
Niklaus Buhler, Rheinfelden, CH;
Marcus Baumann, Basel, CH;
Daniel Bellus, Riehen, CH;
Elmar Sturm, Aesch, CH;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
Cyclobutanecarboxylic acid imides of the formula I ##STR1## wherein one of R.sub.1 and R.sub.6 is hydrogen, methyl or ethyl, and the other is methyl or ethyl, R.sub.2 and R.sub.3 independently of one another are each hydrogen, fluorine or methyl, or R.sub.2 is acetoxy or chlorine while R.sub.3 is hydrogen, and wherein R.sub.4 is hydrogen, methyl or chlorine, and R.sub.5 is hydrogen or methyl, whereby R.sub.3 and R.sub.4 together can also form an additional bond in the four-membered ring, are suitable for combating various fungi and have a particularly excellent action against Botrytis. They can be produced in an especially advantageous manner by photochemical [2+2] cycloaddition of alkenes or alkynes with for example appropriately substituted maleic acid-(3,5-dichlorophenyl)imides.