Tetrahedron p. 10277 - 10292 (1992)
Update date:2022-08-06
Topics:
Koepper, Sabine
Lindner, Karen
Martens, Juergen
The reaction of 3-thiazolines 1a-c with α- or β-mercaptocarboxylic acids leads to bicyclic lactams 2-4.Depending on the reaction conditions diastereomeric mixtures 2b, 3, 4a,b are formed.The synthesis of the latter can be explained by a two-step mechanism.The configuration and conformation of the diasteremers is deducted by (1)H, (13)C-NMR spectroscopy and NOE experiments.
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