反应条件
1: 66 percent / 2.) H2SO4 / 1.) THF, 40 deg C, 12 h; 2.) THF/H2O 2: 70 percent / (i-Pr)2EtN / CH2Cl2 / -50 up to 23 deg C witthin 4 h 3: catecholborane, chiral oxazaborolidine / CH2Cl2 / 1.) -78 up to -40 deg C; 2.) -40 deg C, 36 h 4: n-butyl ammonium formate, Pd(Ph3P)4 / CH2Cl2; methanol / 3 h / 23 °C View Scheme
参考文献
Corey; Helal, Christopher J.
Tetrahedron Letters, 1996 , vol. 37, # 32 p. 5675 - 5678
