During the course of an investigative work with a monosubstituted succinic
acid half-ester tethered to a chiral oxazolidinone, an unexpected disubstit
uted succinimide was obtained with a high degree of stereoselectivity as th
e major product. Subsequent investigative work confirmed the structure and
further defined the scope of this rearrangement reaction. (C) 1999 Elsevier
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