•
For reaction as a heterodienophile in cycloaddition with Danishefsky's diene, see: Tris(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionato)europium(III), 33541.• Starting material for a new route to hexahydrojulolidines, using intramolecular 1,4-cycloaddition: J. Org. Chem., 58, 5041 (1993).