反应条件
1: 95 percent / 60percent aq. AcOH / Ambient temperature 2: 81 percent / DMSO, oxalyl chloride, Et3N / CH2Cl2 / 0.83 h / -60 °C 3: 69 percent / NbCl3*DME / tetrahydrofuran / 1.5 h / Heating View Scheme
参考文献
Shen, Jing-Kang; Katayama, Hajime; Takatsu, Noriyuki; Shiro, Itsuo
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1993 , # 17 p. 2087 - 2098
