反应条件
<b>Multi-step reaction with 4 steps<br /> </b>1: 100 percent / n-BuLi / tetrahydrofuran; hexane / 1.) r.t., 30 min, 2.) r.t., 12 h<br />2: 93.5 percent / n-BuLi / diethyl ether; hexane / 1.) -78 deg C, 1 h, 2.) r.t., 12 h<br />3: 98 percent / diphenyl phosphorazidate, Et<sub>3</sub>N / benzene / 1 h / 50 °C<br />4: 86.4 percent / 1,2-dichloro-benzene / 0.25 h / 190 °C<br /> <br />
参考文献
Choshi, Tominari; Tonari, Akiko; Yoshioka, Haruyuki; Harada, Kenichi; Sugino, Eiichi; Hibino, Satoshi Journal of Organic Chemistry, 1993 , vol. 58, # 27 p. 7952 - 7954