hydrogen; methyl 4-O-(diphenylphosphino)-2,3-O-isopropylidene-α-L-rhamnopyranoside; triethylamine; [{Rh(μ-Cl)(1,5-cyclooctadiene)}2] in ethanol; benzene 24 h; Ambient temperature; Yield given. Yields of byproduct given. Title compound not separated from byproducts;