BY HJ DEN HERTOGI) and N. A. I. M. BOELRIJK (Laboratory for Organic Chemistry of the Municipal University of Amsterdam). ... By heating 3-bromopyridine-N-oxide hydrochloride with sulphuryl chloride at 120", 3-bromo-4-chloropyridine is formed together with 3-bromo- 2-chloropyridine and some 3-bromo-6-chloropyridine. ... Bobranski, Kochanska and Kowalewska 3) observed, that by the action of sulphuryl chloride on quinoline-N-oxide and pyridine- N- ...
