反应详情

A mixture of 2-methyl-5-(2-methyl-4-nitrophenoxy)pyridine (141 g, 0.58 mol) and 10% palladium on charcoal (13 g) in ethyl acetate (200 ml) and ethanol (700 ml) was stirred under an atmosphere of hydrogen (1.2 bar) for 5 hours. After reaction completion (the reaction being complete when 3 mole equivalents of hydrogen have been reacted), the mixture was purged with nitrogen and the catalyst was filtered off. The filtrate was evaporated to dryness to give 3-methyl-4-[(6-methylpyridin-3-yl)oxy]aniline as a white solid (120.6 g, 98%); NMR Spectrum (CDCl3): 2.11 (s, 3H), 2.50 (s, 3H), 6.51 (d, 1H), 6.58 (s, 1H), 6.75 (d, 1H), 6.98-7.03 (m, 2H), 8.18 (s, 1H); Mass spectrum: MH+ 215.

1. customAfter reaction completion (the reaction
2. customhave been reacted), the mixture
3. customwas purged with nitrogen
4. filtrationthe catalyst was filtered off
5. customThe filtrate was evaporated to dryness