A common heterocyclic compound, the Benzisoxazole compound, name is Benzo[d]isoxazol-3-amine,cas is 36216-80-5, mainly used in chemical industry, its synthesis route is as follows.,36216-80-5
(2) Bis(2,2,2-trichloroethyl) 1,2-benzisoxazol-3-ylimidodicarbonate; To a solution of 1,2-benzisoxazol-3-amine (4.00 g, 29.8 mmol) and pyridine (7.25 ml, 89.6 mmol) in tetrahydrofuran (100 ml) was added under ice-cooling, 2,2,2-trichloroethyl chloroformate (8.20 ml, 59.6 mmol), and the mixture was stirred under ice-cooling for 1 hour and at room temperature for 20 minutes. The reaction mixture was poured to water and extracted with ethyl acetate. The extract was washed with water and dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. To the residue was added hexane to give 13.3 g (91.7%) of the desired product as a solid. 1H-NMR (CDCl3) delta; 4.82 (4H, s), 7.36 – 7.44 (1H, m), 7.59 – 7.65 (3H, m).
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Reference£º
Patent; Takeda Pharmaceutical Company Limited; EP1813606; (2007); A1;,
Benzisoxazole – Wikipedia
Benzisoxazole – an overview | ScienceDirect Topics