Tetrahedron Letters p. 1165 - 1168 (1997)
Update date:2022-09-26
Topics:
Turnbull, Kenneth
Krein, Douglas M.
Readily available 3-phenylsydnone (3) reacts with n-butyllithium/TMEDA to form the dilithio species 4 which can be trapped with suitable electrophiles. This represents the first use of a mesoionic ring system for directed lithiation.
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