Furopyridines.<b>XXVII</b>. Reactions of 2-methyl and 2-cyano derivatives of furo[2,3-<i>b</i>]-, -[3,2-<i>b</i>]-, - [2,3-<i>c</i>]- and -[3,2-<i>c</i>]pyridine
Bromination of 2-methylfuropyridines 1a-d-Me gave the 3-bromo derivatives 2a-d, while the 2-cyano compounds 1a-d-CN resulted in the recovery of the starting compounds. Nitration of 1a-d-Me and 1a-d-CN did not yield the corresponding nitro derivative, except for 1-c-CN giving 3-nitro derivative 3c in 7% yield. N-Oxidation of 1a-d-Me and 1b-d-CN with m-chloroperbenzoic acid yielded the N-oxides 4a-d-Me