As a common heterocyclic compound, it belongs to benzoxazole compound, name is 2-Benzoxazolinone, and cas is 59-49-4, its synthesis route is as follows.
General procedure: K2CO3 (9.2 g, 66.6 mmol) and 1,4-dibromobutane (21.0 mL, 177.6 mmol) were added, under stirring, to a solution of benzo[d]oxazol-2(3H)-one (3.0 g, 22.2 mmol) in anhydrous DMF (30 mL). The reaction mixture was heated at 60 C for 3 h. After cooling, the reaction mixture was poured into 100 mL water and extracted with ethyl acetate (3 x 70 mL). The combined organic layers were washed with saturated aqueous NaCl and dried over sodium sulfate. The solvent was removed in vacuo, and the residue was purified by flash column chromatography (SiO2) using hexane/ethyl acetate (8:2) as eluent to give 3.6 g (62%) of 2e as a white solid. 4.2.1.7 3-(5-Bromopentyl)benzo[d]oxazol-2(3H)-one (2g) General procedure A, yield 65%, yellow oil. 1H NMR (400 MHz, CDCl3) delta 7.25-6.95 (m, 4H), 3.84 (t, J = 7.2, 2H), 3.39 (t, J = 6.7, 2H), 1.97-1.87 (m, 2H), 1.85-1.78 (m, 2H), 1.63-1.45 (m, 2H). 13C NMR (101 MHz, CDCl3) delta 154.54, 142.68, 131.08, 123.82, 122.39, 110.07, 108.21, 42.00, 33.21, 32.09, 26.96, 25.21. MS (EI) m/z 306 (M++23).
59-49-4, In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles.,59-49-4 ,2-Benzoxazolinone, other downstream synthetic routes, hurry up and to see
Reference：
Article; Abdelazeem, Ahmed H.; Khan, Shabana I.; White, Stephen W.; Sufka, Kenneth J.; McCurdy, Christopher R.; Bioorganic and Medicinal Chemistry; vol. 23; 13; (2015); p. 3248 – 3259;,
Benzoxazole – Wikipedia
Benzoxazole | C7H5NO – PubChem