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:
Aug. 24, 2010
Filed:
Dec. 11, 2006
Hans Tobler, Basel, CH;
Harald Walter, Basel, CH;
Camilla Corsi, Basel, CH;
Josef Ehrenfreund, Basel, CH;
Fanny Giordano, Muenchwilen, CH;
Martin Zeller, Muenchwilen, CH;
Hans Tobler, Basel, CH;
Harald Walter, Basel, CH;
Camilla Corsi, Basel, CH;
Josef Ehrenfreund, Basel, CH;
Fanny Giordano, Muenchwilen, CH;
Martin Zeller, Muenchwilen, CH;
Syngenta Crop Protection, Inc., Greensboro, NC (US);
Abstract
The present invention relates to a novel a process for the preparation of the compound of the general formula (I), wherein Rand Rare independently H or Calkyl, which comprises treating with a reducing agent either a compound of the general formula (II), wherein Rand Rhave the meanings given for the compound of the formula (I), Ris H or Calkyl and Ph is phenyl, or a compound of the general formula (III), wherein R, R, Rand Ph have the meanings given for the compound of the formula (II), the reducing agent being effective to cleave the benzyl moiety Ph-CH(R)— from the benzylamino moiety PhCH(R)NH— in the compound of the formula (II) or in the compound of the formula (III) to leave an amino group and, in addition, in the case of the compound of the formula (III), to reduce both the 2,3-double bond and the double bond joining the RRC— moiety to the 9-position of the benzonorbornene ring to single bonds. It also relates to processes for the preparation of the compounds (II) and (III) and their precursors and to the compounds (II) and (III) themselves and certain of their precursors, which are novel compounds. The compounds (I) are useful for the preparation of various fungicidal heterocyclyl-carboxylic acid benzonorbornen-5-yl-amides.