1: benzo[b]thiophene With n-butyllithium in tetrahydrofuran T=-75°C; 1 h; Inert atmosphere; 2: With zinc(II) chloride−TMEDA in tetrahydrofuran T=-75 - 20°C; 3: alpha-chloropyridine Further stages;
Nemoto, Koji; Onozawa, Satoru; Konno, Megumi; Morohashi, Naoya; Hattori, Tetsutaro
Bulletin of the Chemical Society of Japan, 2012 , vol. 85, # 3 p. 369 - 371
