gels are prepared by treatment of polymethylhydrosiloxane with diols in the presence of (mu(3),eta(2),eta(3),eta(5)-acenaphthylene)Ru(3)(CO)(7), and act as reusable catalysts in the isomerization of alkenes without leakage of the catalyst species.
[reaction: see text]. SmI2/H2O/amine provides selective cleavage of unsubstituted allylethers in good to excellent yields. This method is therefore useful in deprotection of alcohols and carbohydrates.