87759-24-8Relevant 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
Use of Shift Reagent with MTPA Derivatives in 19F NMR Spectroscopy IV - Determination of Enantiomeric Composition for a Variety of Secondary Cycloalkanols. A Survey
Merckx, E. M.,Lepoivre, J. A.,Lemiere, G. L.,Alderweireldt, F. C.
, p. 380 - 387 (2007/10/02)
Chiral secondary cycloalkanols (monpocyclic alcohols) are derivatized to the corresponding (R)-α-methoxy-α-trifluoromethyl-α-phenylacetic acid esters and analysed by 19F NMR in the presence of tris(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionato)europium(III) .Using this method the enantiomeric composition can be measured for severak cyclopentanols, cyclohexanols and cycloheptanols, with a variety of substitution patterns.It is shown that a mixture of four stereoisomeric cycloalkanols, such as cis and trans disubstituted alcohols, can be analysed simultaneously.
