SEARCH Articles Figures Tables A metathesis A-alkene Alkene metathesis Alkene metathesis catalyst Alkene metathesis complexes Alkenes catalysts, ruthenium complexes Alkenes precursor Allenylidene Allenylidene complexes Allenylidene ruthenium catalysts Allenylidenes Allenylidenes complexes Catalyst precursor Catalyst precursor complexes Catalysts alkenes Complexes alkenes Metathesis catalysts Ruthenium alkenes Ruthenium allenylidene Ruthenium allenylidene complexes Ruthenium allenylidene precursors Ruthenium allenylidenes Ruthenium as catalyst Ruthenium catalyst precursors Ruthenium catalysts alkene metathesis Ruthenium complex catalysts Ruthenium complexes alkenes Ruthenium metathesis Ruthenium metathesis catalyst Ruthenium precursors The Evidence The Ruthenium Allenylidene Precursors