1: With diethylaluminium chloride in dichloromethane T=-78°C; chelation; 0.5 h; 2: With tri-n-butyl-tin hydride T=-78°C; Reduction; 1 h; Further stages.;
参考文献
Asao, Naoki; Asano, Toru; Ohishi, Takeshi; Yamamoto, Yoshinori
Journal of the American Chemical Society, 2000 , vol. 122, # 19 p. 4817 - 4818