1 Introduction Ring Opening Metathesis Polymerization(ROMP)is based on the olefin metathesis reaction,which requires transition metal catalysts.Mainly molybdenum,tungsten and ruthenium based catalysts have up to now b...1 Introduction Ring Opening Metathesis Polymerization(ROMP)is based on the olefin metathesis reaction,which requires transition metal catalysts.Mainly molybdenum,tungsten and ruthenium based catalysts have up to now been used.The“in-between”metal rhenium was only rarely applied in olefin metathesis reactions,and not at all in ROMP processes.We have found that cationic phosphine substituted dinitrosyl rhenium complexes 1a and 1b effectively catalyze ROMP of norbonene,dicyclopentadiene and of cyclooctene.See Fig.1.展开更多
文摘1 Introduction Ring Opening Metathesis Polymerization(ROMP)is based on the olefin metathesis reaction,which requires transition metal catalysts.Mainly molybdenum,tungsten and ruthenium based catalysts have up to now been used.The“in-between”metal rhenium was only rarely applied in olefin metathesis reactions,and not at all in ROMP processes.We have found that cationic phosphine substituted dinitrosyl rhenium complexes 1a and 1b effectively catalyze ROMP of norbonene,dicyclopentadiene and of cyclooctene.See Fig.1.
