IQUIR 05412
INSTITUTO DE QUIMICA ROSARIO
Unidad Ejecutora - UE
artículos
Título:
Synthesis of 9-substituted-1,8-dioxo-octahydroxanthenes by an efficient iodine-catalyzed cyclization.
Autor/es:
LILIANA E. LUNA; RAQUEL M. CRAVERO*; RICARDO FACCIO; HELENA PARDO; ÁLVARO W. MOMBRÚ; GUSTAVO SEOANE
Revista:
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Editorial:
Wiley-VCH Verlag
Referencias:
Lugar: Weinheim; Año: 2009 vol. 18 p. 3052 - 3057
ISSN:
1434-193X
Resumen:
New 1,8-dioxooctahydroxanthenes with substituents in the
2-, 3-, and 9-positions were obtained by cyclization with iodine
from tandem Michael/Michael adducts. The X-ray molecular
structure of the methyl 2-(1,8-dioxo-2,3,4,5,6,7,8,9-octahydro-
1H-xanthen-9-yl)acetate (3a) was solved and shows
the parallel laminae packing of these molecules. Furthermore,
we reported the structure of intermediate 4 isolated
from this reaction.4 isolated
from this reaction.H-xanthen-9-yl)acetate (3a) was solved and shows
the parallel laminae packing of these molecules. Furthermore,
we reported the structure of intermediate 4 isolated
from this reaction.4 isolated
from this reaction.
