INVESTIGADORES
SPANEVELLO Rolando Angel
artículos
Título:
A chiral auxiliary derived from levoglucosenone in asymmetric Diels-Alder transformations
Autor/es:
ARIEL M. SAROTTI; ROLANDO A. SPANEVELLO; ALEJANDRA G. SUÁREZ
Revista:
TETRAHEDRON LETTERS
Editorial:
Elsevier
Referencias:
Año: 2005 vol. 46 p. 6987 - 6990
ISSN:
0040-4039
Resumen:
The DielsAlder reaction of the acrylate derived from levoglucosenone with cyclopentadiene was studied under several conditions, in the presence and absence of a Lewis acid. The results showed satisfactory diastereomeric excess and the ratio of cycloadducts was found to depend on the reaction conditions. A reversal in stereoselectivity was observed when EtAlCl2 or Et2AlCl were employed as Lewis acids.
