912969-50-7Relevant articles and documents
Asymmetric synthesis of 3-hydroxy-pyrrolidines via tin-lithium exchange and cyclization
Christoph, Guido,Stratmann, Christian,Coldham, Iain,Hoppe, Dieter
, p. 4469 - 4471 (2007/10/03)
We report a method for the synthesis of chiral pyrrolidines using tin-lithium exchange and cyclization reactions. The precursors are formed readily from simple starting materials and undergo tin-lithium exchange by treatment with n-butyllithium. Subsequent intramolecular carbolithiation is stereoselective to give highly enantiomerically enriched pyrrolidines in excellent yields.