%A X Fu %A RA Moss %A RR Sauers %A P Wipf %J Tetrahedron Letters %T The fragmentation of exo-5-norbornenyl-2-oxychlorocarbene: Stereochemistry and mechanism %X The fragmentation of (S)-exo-5-norbornenyl-2-oxychlorocarbene (3) affords (S)-exo-5-norbornenyl-2-chloride (4), (R)-endo-5-norbornenyl-2-chloride (5), and (S)-3-nortricyclyl chloride (6) with varying degrees of enantiomeric excess. A weighted blend of SNi fragmentation and escape to norbornenyl/nortricyclyl ion pairs rationalizes the stereochemical results. ? 2005 Elsevier Ltd. All rights reserved. %N 24 %P 4265 - 4268 %V 46 %D 2005 %R 10.1016/j.tetlet.2005.03.208 %L pittir22246