556808-29-8Relevant articles and documents
Influence of phosphoramidites in copper-catalyzed conjugate borylation reaction
Sole, Cristina,Bonet, Amadeu,De Vries, Andre H. M.,De Vries, Johannes G.,Lefort, Laurent,Gulyas, Henrik,Fernandez, Elena
, p. 7855 - 7861 (2013/01/16)
Copper(I) has become the preferred metal to catalyze the β-boration of α,β-unsaturated carbonyl compounds, and now we demonstrate that easily accessible monodentate chiral ligands, such as phosphoramidites and phosphites, can be convenient alternative ligands to induce asymmetry in the enantioselective version of this reaction, particularly in the β-boration of α,β-unsaturated imines.
The development of an asymmetric Nicholas reaction using chiral phosphoramidite ligands
Ljungdahl, Natalie,Pera, Núria Parera,Andersson, Kristian H. O.,Kann, Nina
, p. 394 - 398 (2008/09/17)
An asymmetric version of the Nicholas reaction involving the use of chiral phosphoramidite ligands has been developed. Treatment of a cobalt carbonyl complexed propargylic alcohol with two equivalents of the chiral ligand, followed by reaction with a sily
Mono- versus bidentate ligands in rhodium-catalyzed asymmetric hydrogenation. A comparative rate study
Pena, Diego,Minnaard, Adriaan J.,De Vries, Andre H. M.,De Vries, Johannes G.,Feringa, Ben L.
, p. 475 - 478 (2007/10/03)
(Matrix presented) Bidentate chiral phosphines are no longer essential for achieving a fast and highly enantioselective hydrogenation of α- or β-dehydroamino acid derivatives. In particular, a readily accessible and stable monodentate phosphoramidite can