反应条件
1: 3 N KOH / tetrahydrofuran
3: 73 percent / DPPA, EtO2CN=NCO2Et, PPh3 / tetrahydrofuran
4: 81 percent / PPh3 / tetrahydrofuran; H2O
View Scheme
参考文献
Sakamoto, Takao; Kondo, Yoshinori; Yamanaka, Hiroshi
Heterocycles, 1993 , vol. 36, # 11 p. 2437 - 2440
