90032-60-3Relevant academic research and scientific papers
Chiral aminophosphine phosphinite-palladium catalysts in asymmetric allylic alkylations
Gong, Liuzhu,Chen, Guoshu,Mi, Aiqiao,Jiang, Yaozhong,Fu, Fangmin,Cui, Xin,Chan, Albert S.C.
, p. 4297 - 4302 (2000)
Palladium complexes of chiral aminophosphine phosphinites were investigated for the asymmetric allylic alkylation of 1,3-diphenyl-2-propenyl acetate with dimethyl malonate. The chirality of the carbon bonded to O-PPh2 in the ligands was found t
Application of P-stereogenic aminophosphine phosphinite ligands in asymmetric hydroformylation
Ewalds, Regine,Eggeling, Eva B.,Hewat, Alison C.,Kamer, Paul C. J.,Van Leeuwen, Piet W. N. M.,Vogt, Dieter
, p. 1496 - 1504 (2007/10/03)
New chiral aminophosphine phosphinite ligands with a stereogenic center at the aminophosphine phosphorus atom were prepared based on (R,S)-ephedrine as the chiral auxiliary and backbone. Substituents at the chiral aminophosphine as well as at the phosphinite phosphorus atom were varied. These new ligands were applied to the rhodium-catalyzed asymmetric hydroformylation of vinyl arenes. The enantiomeric excess reached up to 77%. 1H and 31P NMR studies of the Rh complexes under syngas pressure reveal that [HRh(CO)2(P/P)] complexes with the NP* moiety in an axial position are responsible for enantioselectivity.
Highly selective synthesis of 4-vinylcyclohexene by cyclodimerization of butadiene catalysed by aminophosphinephosphinite and bis(aminophosphine) chiral ligands nickel complexes
Suisse, Isabelle,Bricout, Herve,Mortreux, Andre
, p. 413 - 416 (2007/10/02)
The highest chemoselective synthesis of 4-vinylcyclohexene ever observed by butadiene cyclodimerization on nickel complexes has been obtained with aminophosphinephosphinite and bis(aminophosphine) chiral ligands (selectivity up to 99%).
