Reference of (S)-5,5′-Bis(diphenylphosphino)-4,4′-bi-1,3-benzodioxoleIn 2022 ,《Rh(I)-catalyzed asymmetric transfer hydrogenation of α-enamidophosphonates to α-aminophosphonates》 was published in Tetrahedron. The article was written by Feng, Yuting; Viereck, Peter; Li, Shi-Guang; Tsantrizos, Youla S.. The article contains the following contents:
An asym. Rh-catalyzed transfer hydrogenation was developed for the conversion of α-enamidophosphonates to α-aminophosphonates (α-APs) using isopropanol as the hydride donor. This methodol. is amenable to a broad substrate scope. A library of structurally diverse α-APs was synthesized in moderate to good yield and enantiomeric excess, having a methylene moiety at Cβ and aryl, heteroaryl or alkyl side chains. In the experiment, the researchers used (S)-5,5′-Bis(diphenylphosphino)-4,4′-bi-1,3-benzodioxole(cas: 210169-54-3Reference of (S)-5,5′-Bis(diphenylphosphino)-4,4′-bi-1,3-benzodioxole)
(S)-5,5′-Bis(diphenylphosphino)-4,4′-bi-1,3-benzodioxole(cas: 210169-54-3) may be used for: regio- and stereoselective preparation of axially chiral arylnaphthalene derivatives via rhodium-catalyzed [2+2+2] cycloaddition of diynes with naphthalenepropynoic acid derivatives or diastereo- and enantioselective hydrogenation of α-amino-β-keto ester hydrochlorides catalyzed by an iridium complex.Reference of (S)-5,5′-Bis(diphenylphosphino)-4,4′-bi-1,3-benzodioxole
Referemce:
Phosphine ligand,
Chiral phosphines in nucleophilic organocatalysis