反应条件
1: 1.) pyridine / 1.) CH2Cl2, from 0 deg C to RT, 4 h, 2.) reflux, 18 h 2: NH4OAc / methanol / 72 h 3: pyridine / tetrahydrofuran / 24 h / Heating 4: H2, Ru(OCOCF3)2<(R)-binap> / methanol / 18 h / 25 °C / 3040 Torr / other time and catalyst; var. enamido esters 5: 6 N HCl / tetrahydrofuran / 19 h / Heating View Scheme
参考文献
Tetrahedron Asymmetry, , vol. 2, # 7 p. 543 - 554
