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Shuttle ProcessConversion Process

Shuttle process

Optical Resolution of Racemic(DL-) Amino Acids

Imine is formed with stereo selectivity through S-ARCA solution and DL-amino acids in an aqueous solution with a phase transfer catalyst at the basic condition. After imine formation, excess DL-amino acids in the aqueous solution are reused as they are, or they are reused after additional racemization. After the hydrolysis of the imine, D-amino acids are obtained. R-ARCA can also be used to obtain L-amino acids through the same process. This reactive extraction process in which ARCA is used as a reusable extractant is called "shuttle process."

Shuttle process VOD