Simple and highly efficient preparation and characterization of (−)-lupanine and (+)-sparteine

AK Przybył, M Kubicki

Index: Przybyl, Anna K.; Kubicki, MacIej Tetrahedron, 2011 , vol. 67, # 40 p. 7787 - 7793

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Citation Number: 8

Abstract

In a simple and convenient way, we have improved the non-chromatographic isolation of optically pure (−)-2-oxosparteine ((−)-lupanine) and (+)-sparteine. The fast and efficient method for the determination of the ee of bisquinolizidine alkaloids has been proposed. A relatively simple simple 1H NMR method has been applied for evaluation of the% ee of enantiomers of the lupanines and sparteines with the chiral dibenzoyltartaric acids as the ...