Tetrahedron Letters p. 7115 - 7118 (1994)
Update date:2022-08-03
Topics:
Bailey, Patrick D.
Morgan, Keith M.
Smith, David I.
Vernon, John M.
Several spiro 2-pyrrolidin-5-ones were obtained by a two-step procedure from N-substituted succinimides, involving spiro cyclisation of N-acyliminium ion intermediates in refluxing trifluoroacetic acid; in all cases cyclisation utilised a tethered aromati
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