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Reaction of mesoionic compounds deriving from cyclic N-acyl-α-aminoacids with N-(phenylmethylene)benzenesulfonamide

✍ Scribed by Piero Dalla Croce; Raffaella Ferraccioli; Concetta La Rosa

Book ID: 104208998
Publisher: Elsevier Science
Year: 1999
Tongue: French
Weight: 443 KB
Volume: 55
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(98)01026-6

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✦ Synopsis

We studied the behaviour of bicyclic mesoionic compounds derived from the cyclodehydration of cyclic N-acyl-~-aminoacids 1-4 with N-(phenylmethylene)benzenesulfonamide 5. The reaction affords spirocy¢lic [5-1actams 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.

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