Cyanopyridine,intermediate of rimifon, was synthesized from 4-picoline using vanadium oxide as a catalyst in a fixed-bed reactor, reached 99% conversion of 4-picoline, 88% selectivity and 87.

以4啶为原料,在固定床反应器通过含氧化钒的化剂发生气固相接触氨氧化反应制备雷米封4氰啶,4啶的转化率为99%,4氰啶的选择性为88%,收率为87。