71283-67-5

Upstream product

• 40843-73-0 4-(2',4'-dichlorophenoxy)-phenol 
• 57057-80-4 ethyl (S)-2-[[(4-methylphenyl)sulfonyl]oxy]propanoate 
• 687-47-8 (S)-Ethyl lactate 

Downstream Products

• 71283-65-3 L-(-)-2-<4-(2.4-Dichlorphenoxy)-phenoxy>propionsaeuremethylester 
• 75021-71-5 L-(-)-2-<4-(2.4-Dichlorphenoxy)-phenoxy>propionsaeure 

Relevant academic research and scientific papers

PROCESS FOR PREPARING (R)-ARYLOXYPROPIONIC ACID ESTER DERIVATIVES

The present invention relates to a method for preparing optically active (R)-aryloxypropionic acid ester derivatives, and more particularly to a method for preparing (R)- aryloxypropionic acid ester derivatives with high optical purity and good yield at low cost from phenol derivatives with various substituted functional groups and (S)-alkyl O-arylsulfonyl lactates.

Synthesis and Herbicidal Activity of the D- and L-Methyl 2--propionate Enantiomers

The D- and L-enantiomers of the wild oat herbicide diclofop-methyl (title compound) were prepared utilizing resolution operations and by synthetic routes with optically active compounds as starting material.The dextro-rotatory product which the D(R)-configuration can be attributed to, was found to be the herbicidally active species. - Keywords: Phenoxy-phenoxy-propionic Acid Ester, Diclofop-methyl, Stereoisomers, Grass Herbicide