N-hydrazine cyclic(amino)(alkyl)carbene ruthenium complexes: synthesis and reactivity in olefin metathesis

Abstract

The synthesis of a ruthenium complex containing an N-hydrazine cyclic(amino)(alkyl)carbene (CAAC) ligand is reported. This robust and air-stable complex demonstrates good to excellent catalytic performances under an air atmosphere in various ring-closing metathesis (RCM), ring-closing enyne metathesis (RCEYM), ring-opening cross-metathesis (ROCM), self-metathesis (SM), cross-metathesis (CM) and ethenolysis reactions.