Quality Control of (S)-5,5′-Bis(diphenylphosphino)-4,4′-bi-1,3-benzodioxoleIn 2017 ,《Rhodium-catalyzed hydroformylation in γ-valerolactone as a biomass-derived solvent》 was published in Journal of Organometallic Chemistry. The article was written by Pongracz, Peter; Bartal, Brigitta; Kollar, Laszlo; Mika, Laszlo T.. The article contains the following contents:
Rhodium-catalyzed hydroformylation of styrene, α-methylstyrene, di-Me itaconate, and (R)-limonene was performed in gamma-valerolactone (GVL) as a proposed biomass-based environmentally benign solvent for hydroformylation referring to toluene as a generally used conventional solvent. Both achiral (triphenylphosphine, 1,3-bis(diphenylphoshino)propane) and enantiopure bidentate phosphine ligands ((S,S)-BDPP, (R)-BINAP, (R)-QUINAP, (R,R)-DIOP, (Rc),(Sp)-JOSIPHOS, (S)-SEGPHOS, (S)-(DM)-SEGPHOS) were investigated in in situ generated Rh-diphosphine catalyst systems. In general, the catalysts’ activity in GVL was lower than in toluene; however, remarkable chemo- (>99%) and regioselectivities (>95%) were achieved in GVL under identical conditions. The BDPP-modified Rh-catalyst was recycled for three consecutive cycles; however a decrease in its activity was detected. In the experiment, the researchers used many compounds, for example, (S)-5,5′-Bis(diphenylphosphino)-4,4′-bi-1,3-benzodioxole(cas: 210169-54-3Quality Control 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.Quality Control of (S)-5,5′-Bis(diphenylphosphino)-4,4′-bi-1,3-benzodioxole
Referemce:
Phosphine ligand,
Chiral phosphines in nucleophilic organocatalysis