Scalable Enantioseparation of Amino Acid Derivatives Using Continuous Liquid−Liquid Extraction in a Cascade of Centrifugal Contactor Separators
作者:Boelo Schuur、Andrew J. Hallett、Jozef G. M. Winkelman、Johannes G. de Vries、Hero J. Heeres
DOI:10.1021/op900152e
日期:2009.9.18
Using a cascade of six centrifugalcontactorseparators in a countercurrent liquid−liquid extraction mode allowed the separation of one of the enantiomers of 3,5-dinitrobenzoyl-leucine in 55% yield and 98% ee using a catalytic amount of a chiral host compound based on a cinchona alkaloid. This method allows the preparation of kilograms of enantiopure material in table-top-sized equipment that can be