Extracurricular laboratory: Synthetic route of 239097-74-6

As the rapid development of chemical substances, we look forward to future research findings about 239097-74-6

Benzo[d]isoxazol-5-amine, cas is 239097-74-6, it is a common heterocyclic compound, the Benzisoxazole compound, its synthesis route is as follows.,239097-74-6

Synthesis of N-benzofdlisoxazol-5-yl-4-propyl-benzenesulfonamide, STX 919 (KRB01047) :; To a solution of 4n-propylbenzenesulphonyl chloride (171 mg, 0.783 mmol) in dichloromethane (4 mL) was added pyridine (150 uL, 1.86 mmol) and the mixture was stirred under N2 for 5 min, after which time 5-amino-1, 2-benzisoxazole (100 mg, 0.746 mmol) was added. The resulting mixture was stirred for 2 h at room temperature, then saturated NaHCO3 solution (10 mL) was added and the mixture was extracted into ethyl acetate (20 mL). The organic phase was washed with brine, dried (Na2SO4), filtered and evaporated to give a residue that was purified using flash chromatography to afford a white solid (170 mg, 72%), single spot at Rf 0.68 (1: 1 hexane: ethyl acetate). mp 130.0- 130. 6C, HPLC purity 99+% (tR 2.44 min in 10% water-acetonitrile).’H NMR (CDCI3) : No. 8.62 (1H, d, J=1.0 Hz), 7.60 (2H, d, J=8.4 Hz), 7.48 (2H, m), 7.19 (3H, m), 6.86 (1H, s, N-H), 2.58 (2H, t, J=7.5 Hz), 1.58 (2H, sextet, J=7.4 Hz), 0.88 (3H, t, J=7.4 Hz). LCMS: 315.14 (M-). FAB-MS (MH+, deHOsS) : calcd 317.0960, found 317.0962

As the rapid development of chemical substances, we look forward to future research findings about 239097-74-6

Reference£º
Patent; STERIX LIMITED; WO2005/42513; (2005); A1;,
Benzisoxazole – Wikipedia
Benzisoxazole – an overview | ScienceDirect Topics