Artículos de revistas
Heck reaction of endocyclic enecarbamates with diazonium salts. Formal enantioselective syntheses of alkaloids (-)-codonopsine and (-)-codonopsinine, and the synthesis of a new C-aryl azasugar.
Registro en:
Tetrahedron Letters. Pergamon-elsevier Science Ltd, v. 40, n. 11, n. 2083, n. 2086, 1999.
0040-4039
WOS:000078887300015
10.1016/S0040-4039(99)00151-3
Autor
Oliveira, DF
Severino, EA
Correia, CRD
Institución
Resumen
Formal total syntheses of the pyrrolidine alkaloids (-)-codonopsine and (-)-codonopsinine, as well as the synthesis of a new C-aryl azasugar were accomplished from a common 5-membered, enantiomerically pure endocyclic enecarbamate. The key step in those syntheses relies on a novel and practical version of the Heck reaction involving endocyclic enecarbamates and diazonium salts. (C) 1999 Elsevier Science Ltd. All rights reserved. 40 11 2083 2086