Allyliccarbonates were more active than the corresponding allylic acetates in carbonylallylationusingPdCl2(PhCN)2-SnCl2, and the carbonylallylation by (E)-crotyl carbonate at 10 °C exhibited opposite diastereo-selectivity (anti-selectivity) to that by (E)-crotyl acetate at 60 ° C.
Titanium oxide-supported carbonylmolybdenum catalyst was applied to selective monoallylation of methyl p-tolylsulfonylacetate using allylic acetates or carbonates in refluxing dioxane. This reaction required both 2,2′-bipyridyl as a ligand and sodium hydride as a base for preparation of the salt of methyl p-tolylsulfonylacetate.