Fig. 4
From: Silicon-oriented regio- and enantioselective rhodium-catalyzed hydroformylation
Substrate effect. Reaction conditions: 1 (0.5 mmol), Rh(acac)(CO)2 (1.0 mol%), (S,R)-(N-Bn)-YanPhos (3.0 mol%), CO (5 bar), H2 (5 bar), toluene (2 ml), 70 °C, 20 h. Yields and product ratios were determined by 1H NMR analysis of the unpurified reaction mixture. Enantiomeric excesses (ee) were determined by HPLC analysis using a chiral stationary phase after NaBH4 reduction
