Catalyst structures comprising a single palladium metal center and a substituted tri-arylphosphine ligand. Also disclosed are methods of making and using the catalyst structures to facilitate polymerization reactions and Heck coupling reactions.
Ligand Synthesis
申请人:Allen Nathan Tait
公开号:US20070287847A1
公开(公告)日:2007-12-13
Ligand synthesis methods for the preparation of ligands having the formula
wherein Q is selected from phosphorus, arsenic and antimony; wherein X
1
, X
2
and X
3
are carbon anions; and, wherein R
15
is selected from —SO
3
, —SO
2
N(R
18
), —CO
2
, —PO
3
, —AsO
3
, —SiO
2
, —C(CF
3
)
2
O; where R
18
is selected from a hydrogen, a halogen, a hydrocarbyl group and a substituted hydrocarbyl group, are disclosed. Also disclosed are methods of complexing the ligands with late transition metals to form catalyst complexes that catalyze polymerization reactions and/or Heck coupling reactions.
Polymerization of acyclic aliphatic olefins
申请人:Conner David M.
公开号:US20080207855A1
公开(公告)日:2008-08-28
A robust, impurity tolerant method of making substantially linear polymers of acyclic aliphatic olefins using catalyst complexes comprising a single palladium metal center and a substituted tri-aryl ligand is disclosed.