RUTHENIUM COMPLEX-CATALYZED ALLYLIC ALKYLATION OF CARBONUCLEOPHILES WITH ALLYLIC CARBONATES

Allylic carbonates except for allyl methyl carbonate reacted with carb onucleophiles such as ethyl acetoacetate in the presence of a catalyti c amount of Ru(cod)(cot) [cod = cycloocta-1,5-diene, cot = cycloocta-1 ,3,5-triene] in N-methylpiperidine at 80-degrees-C to give the corresp onding monoallylated carbonucleophiles in high yields with high regios electivity. The regioselectivity was quite different from that in the palladium-catalyzed reactions. The allylation of carbonucleophiles usi ng allyl methyl carbonate selectively gave the diallylated carbonucleo philes in high yields.