Rhodium-catalyzed hydroformylation in γ-valerolactone as a biomass-derived solvent
作者:Péter Pongrácz、Brigitta Bartal、László Kollár、László T. Mika
DOI:10.1016/j.jorganchem.2017.04.029
日期:2017.10
Rhodium-catalyzed hydroformylation of styrene, α-methylstyrene, dimethyl 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
Design and Application of Hybrid Phosphorus Ligands for Enantioselective Rh-Catalyzed Anti-Markovnikov Hydroformylation of Unfunctionalized 1,1-Disubstituted Alkenes
作者:Cai You、Shuailong Li、Xiuxiu Li、Jialing Lan、Yuhong Yang、Lung Wa Chung、Hui Lv、Xumu Zhang
DOI:10.1021/jacs.8b00275
日期:2018.4.18
series of novel hybrid phosphorus ligands were designed and applied to the Rh-catalyzed enantioselective anti-Markovnikov hydroformylation of unfunctionalized 1,1-disubstituted alkenes. By employing the new catalyst, linear aldehydes with β-chirality can be prepared with high yields and enantioselectivities under mild conditions. Furthermore, catalyst loading as low as 0.05 mol % furnished the desired