Spiro cyclisations of N-acyliminium ions involving an aromatic π-nucleophile
Spiro 2-pyrrolidin-5-ones were obtained from N-substituted succinimides by a two-step procedure, involving 5- or 6-endo-trig cyclisation of N-acyliminium ion intermediates with a tethered aromatic π-nucleophile.
Bailey, Patrick D.,Morgan, Keith M.,Smith, David I.,Vernon, John M.
p. 3369 - 3378
(2007/10/03)
Novel Spiro Cyclisations of N-Acyliminium Ions involving an Aromatic ?-Nucleophile
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
Bailey, Patrick D.,Morgan, Keith M.,Smith, David I.,Vernon, John M.
p. 7115 - 7118
(2007/10/02)
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