反应条件
1: 56 percent / 1.) butyllithium, tetramethylethylenediamine; 2.) hexamethylphosphoric triamide / tetrahydrofuran / 1.) -78 deg C, 1 h; 2.) -78 deg C, 1h then rt., 5 h
2: 96 percent / sodium amalgam, disodium hydrogen phosphate / methanol / 0 deg C, 1 h then rt., 16 h
3: 81 percent / boron trifluoride*acetic acid / CHCl3 / 0.33 h / 0 °C
View Scheme
参考文献
Ochiai, Masahito; Sumi, Kenzo; Fujita, Eiichi
Chemical and Pharmaceutical Bulletin, 1983 , vol. 31, # 11 p. 3931 - 3938
