Intramolecular addition of a hydroxyl to a N-acyliminium system. Application to the synthesis of isoindolo[2,1-a] [3,1]benzoxazine and isoindolo[1,2-c][2,4] benzoxazepine derivatives
The titled compounds were prepared by the reaction of hydroxylated lactam (3a-c) or (10) with p-toluenesulfonic acid in dichloromethane. The ratio of diastereomeric mixtures (4b/5b (2/1) or 4c/5c (2/1) or 11/12 (5/1)) is discussed.
Pigeon, Pascal,Sikoraiova, Jana,Marchalin, Stefan,Decroix, Bernard
p. 129 - 138
(2007/10/03)
Ring Closure Reactions of ortho-Carboxymaleanilic Acids Revision of Structural Assignment
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Balasubramaniyan, V.,Argade, N. P.
p. 626 - 628
(2007/10/02)
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