SEARCH Articles Figures Tables Allylation ytterbium triflate Catalysts ytterbium triflate Condensation ytterbium triflate Nitration with ytterbium triflate catalyst Recycling ytterbium triflate Ytterbium triflate [yb Ytterbium triflate mechanism Ytterbium triflate reaction Ytterbium triflate, Michael addition