1: ortho-dibromobenzene With magnesium in tetrahydrofuran
Inert atmosphere;
2: 2-pyridine carbonitrile in tetrahydrofuran
T=0°C; Inert atmosphere;
3: With hydrogenchloride; water in diethyl ether
0.5 h; Inert atmosphere;
Hirao, Toshikazu; Masunaga, Toshio; Yamada, Naoto; Ohshiro, Yoshiki; Agawa, Toshio
Bulletin of the Chemical Society of Japan, 1982 , vol. 55, # 3 p. 909 - 913