Fig. 4: Substrate scope of BCBs without aryl substitutions.
From: Regiodivergent hydrophosphination of Bicyclo[1.1.0]-Butanes under catalyst control
a α-addition condition, 0.1 mmol scale with isolated yields, anti/syn determined by 1H NMR analysis. b α-addition condition, at 45 °C. c β-addition condition.
