76152-63-1Relevant academic research and scientific papers
Threophos: A New Chiral Aminophosphine Phosphinite (AMPP) Ligand Highly Efficient in Asymmetric Hydrovinylation of Cyclohexa-1,3-diene Catalyzed by Nickel Complexes
Buono, Gerard,Siv, Chhan,Peiffer, Gilbert,Triantaphylides, Christian,Denis, Philippe,et al.
, p. 1781 - 1782 (2007/10/02)
Threophos is a potential tridentate ligand obtained from threonine. (S)-(+)-3-Vinylcyclohex-1-ene is produced quantitatively in 93percent ee from asymmetric hydrovinylation of cyclohexa-1,3-diene catalyzed by the Ni(COD)2-AlEt2Cl- syste
Asymmetric Codimerization of Cyclohexa-1,3-diene with Ethylene Catalysed by Chiral Aminophosphine-nickel Complexes
Buono, Gerard,Peiffer, Gilbert,Mortreux, Andre,Petit, Francis
, p. 937 - 939 (2007/10/02)
The asymmetric codimerization of cyclohexa-1,3-diene with ethylene is catalysed by the Ni(cycloocta-1,5-diene)2-AlEt2Cl-L system where L are chiral aminophosphines; optimization of this catalytic system (-70 degC; L/Ni = 10) gives (+)-(S)-3-vinylcyclohexene with 73.5percent optical purity in 87percent chemical yield when (-)-(R)-N-methyl-N-(1-phenylethylamino)diphenylphosphine is used.
