... 6 )2244——2247(1988) Site-Selectivity in the Reaction of 3-Substituted Pyridine l-Oxides with Phosphoryl Chloride HIROSHI YAMANAKA,* TOMIO ARAKI. ... Yield 270 mg (350/0). References and Notes 1) T. Sakamoto, S. Kaneda, S. Nishimura, and H. Yamanaka, Chem. ...