反应详情

Carbonyldiimidazole (4.3 g) was added to the solution of N1-cyclopropyl-4,5-difluorobenzene-1,2-diamine (3.2 g) in THF (30 ml). The mixture was stirred at rt for 20 hours, then diluted with ethyl acetate (200 ml) and washed with hydrochloric acid (1M, 200 ml). Organic layer dried over sodium sulphate, solvent removed to give expected product as a black solid (2.5 g). 1H NMR (CD3OD)δ: 7.20 (dd, 1H), 6.95 (dd, 1H), 2.86 (m, 1H), 1.11 (m, 2H), 0.94 (m, 2H).

1. washwashed with hydrochloric acid (1M, 200 ml)
2. dry with materialOrganic layer dried over sodium sulphate, solvent
3. customremoved