Process and intermediate products for preparing pyridyl-4-fluoroanilines

摘要

PCT No. PCT/EP97/01336 Sec. 371 Date Sep. 14, 1998 Sec. 102(e) Date Sep. 14, 1998 PCT Filed Mar. 17, 1997 PCT Pub. No. WO97/34872 PCT Pub. Date Sep. 25, 1997A process for preparing pyridyl-substituted N-phenylhydroxylamines by catalytic hydrogenation of the corresponding nitro compounds in the presence of an N-substituted morpholine compound and rearrangement of the hydroxylamine compounds obtained to pyridyl-4-fluoraniline compounds is described.