A highly chemo- and enantio-selective hetero-Diels–Alder reaction catalysed by chiral aluminium complexes
作者:Anette Graven、Mogens Johannsen、Karl Anker Jørgensen
DOI:10.1039/cc9960002373
日期:——
A new, highly chemo- and enantio-selective catalytic hetero Diels-Alder reaction of conjugated dienes containing allylic C-H bonds with carbonyl compounds has been developed; with the use of (S)-(-)-BINOL-AlMe (BINOL = 1,1'-bi-2-naphthol) as a catalyst, simple conjugated dienes react with glyoxylate esters, giving the (R)-enantiomer of the hetero-Diels-Alder adduct as the major product with up to 97% ee.