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

Tetrahedron

Volumn 55, Issue 1, 1999, Pages 201-210

  Croce, Piero Dalla ^a   Ferraccioli, Raffaella ^a   Rosa, Concetta La ^b  

^a CNR   (Italy)

^b Facolta di Farmacia   (Italy)

Author keywords

[No Author keywords available]

Indexed keywords

AMPHOLYTE; BENZENESULFONAMIDE DERIVATIVE; CYCLOPEPTIDE;

ARTICLE; CHEMICAL REACTION; CONFORMATIONAL TRANSITION; PRIORITY JOURNAL; STRUCTURE ANALYSIS;

EID: 0032927039     PISSN: 00404020     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4020(98)01026-6     Document Type: Article

References (18)

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3. Only the N-benzoyl derivative of 1,3-oxazolidine-4-carboxylic acid is known: Conti, S.; Cossu, S.; Giacomelli, G.; Falorni, M. Tetrahedron 1994, 50, 13493. Any attempt to synthesize the N-acetyl derivative was unsuccessful.
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10. 1 we repeated the reaction of 1a,b with 5 in toluene solution and acetic anhydride as dehydrating agent.
11. The reversed regioisomer should show only N.O.E. effect between H-5 and the ortho protons of the C-3 phenyl ring. The assignment of the ortho protons of the two phenyl rings is a consequence of the observed N.O.E. effects with the independently assigned H-5 and H-8.
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