C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 241/44 (2006.01) C07D 405/12 (2006.01)
Patent
CA 2257204
A process for producing D(+)-2-[4-(6-chloro-2-quinoxalyloxy)phenoxy]propionic acid, which comprises reacting an alkali metal salt of 4-(6-chloro-2-quinoxalyloxy)phenol with an alkali metal salt of L-2- chloropropionic acid in an aromatic hydrocarbon solvent in the presence of an aprotic polar solvent to obtain an alkali metal salt of D(+)-2- [4-(6-chloro-2-quinoxalyloxy)phenoxy]propionic acid, and treating it with an acid.
Cette invention concerne un procédé permettant de produire de l'acide D(+)-2-[4-(6-chloro-2-quinoxalyloxy)phénoxy]propionique, lequel procédé consiste à faire réagir un sel de métal alcalin de 4-(6-chloro-2-quinoxalyloxy)phénol avec un sel de métal alcalin d'acide L-2-chloropropionique. Cette réaction, qui se fait dans un solvant hydrocarbure aromatique et en présence d'un solvant polaire aprotique, permet d'obtenir un sel de métal alcalin d'acide D(+)-2-[4-(6-chloro-2-quinoxalyloxy)phénoxy]propionique, lequel est ensuite traité à l'aide d'un acide.
Fukuda Kenzo
Hatanaka Masataka
Ishii Kenichi
Makabe Takahiro
Nissan Chemical Industries Ltd.
Smart & Biggar
LandOfFree
Processes for producing phenoxy propionic acid derivatives does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Processes for producing phenoxy propionic acid derivatives, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Processes for producing phenoxy propionic acid derivatives will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1381202