We studied the behaviour of bicyclic mesoionic compounds derived from the cyclodehydration of cyclic N-acyl-alpha-aminoacids 1-4 with N-(phenylmethylene)benzenesulfonamide 5. The reaction affords spirocyclic beta-lactams and/or imidazo-condensed products (the 1,3-dipolar cycloaddition adducts) depending on the experimental conditions and on the nature of the substituent R on the mesoionic ring. (C) 1998 Elsevier Science Ltd. All rights reserved.
Reaction of mesoionic compounds deriving from cyclic N-acyl-alpha-aminoacids with N-(phenylmethylene)benzenesulfonamide
FERRACCIOLI R;
1999
Abstract
We studied the behaviour of bicyclic mesoionic compounds derived from the cyclodehydration of cyclic N-acyl-alpha-aminoacids 1-4 with N-(phenylmethylene)benzenesulfonamide 5. The reaction affords spirocyclic beta-lactams and/or imidazo-condensed products (the 1,3-dipolar cycloaddition adducts) depending on the experimental conditions and on the nature of the substituent R on the mesoionic ring. (C) 1998 Elsevier Science Ltd. All rights reserved.File in questo prodotto:
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