Process for the preparation of methoxyminophenylglyoxylic...

C - Chemistry – Metallurgy – 07 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C07C 251/48 (2006.01) C07C 231/02 (2006.01) C07C 231/06 (2006.01) C07C 235/78 (2006.01) C07C 249/08 (2006.01) C07C 251/60 (2006.01)

Patent

CA 2235587

The present invention relates to a process for the preparation of o-chloro- methylphenylmethoximinoglyoxylic acid esters of formula (I), wherein R is C3- C8 alkyl, in which process o-chloromethylphenylglyoxylic acid amide of formula (III) is, in any order or concurrently, a) oximated with O-methylhydroxylamine and b) esterified under acid conditions with an R-OH alcohol, wherein R is C3- C8 alkyl. A process for the preparation of compound (III) is also described, as well as the use of the compounds of formula (I) in the preparation of fungicides.

La présente invention concerne un procédé de préparation d'esters de l'acide o-chloro-méthylphénylméthoximinoglyoxylique de la formule (I) dans laquelle R représente alkyle C¿3?-C¿8?, procédé dans lequel un amide de l'acide o-chlorométhylphénylglyoxylique de la formule (III) est, dans un ordre quelconque ou simultanément: a) oximé à l'aide d'une O-méthylhydroxylamine, et b) estérifié, dans des conditions acides, à l'aide d'un alcool R-OH, où R représente alkyle C¿3?-C¿8?. On décrit également un procédé de préparation du composé (III), de même que l'utilisation des composés de la formule (I) dans la préparation de fongicides.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Process for the preparation of methoxyminophenylglyoxylic... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of methoxyminophenylglyoxylic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of methoxyminophenylglyoxylic... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1736576

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.