Regioselective and stereoselective cyclizations of cyclohexadienones tethered to active methylene groups.

DOI Number:

10.1039/C1OB06125A

Reaction Category:

Educt:

1-[1-(1,1-Dimethyl-3-buten-1-yl)-4-oxo-2,5-cyclohexadien-1-yl] 3-(1,1-dimethylethyl) propanedioate

Product:

rel-1,1-Dimethylethyl (3R,3aS,7aS)-7a-(1,1-dimethyl-3-buten-1-yl)-2,3,3a,4,5,7a-hexahydro-2,5-dioxo-3-benzofurancarboxylate

Catalyst:

ceasium carbonate, (8α,9R)-1-(9-anthracenylmethyl)-9-(2-propenyloxy)-Cinchonanium bromide

Cas No:

200132-54-3

Cas No:

485-71-2