It is a common heterocyclic compound, the benzoxazole compound, 6-Bromobenzo[d]oxazol-2(3H)-one, cas is 19932-85-5 its synthesis route is as follows.
General procedure: 6-bromo-3H-1,3-benzoxazol-2-one 1 (5.00 g, 23.36 mmol) wassuspended in ACN (150 mL) and K2CO3 (9.69 g, 70.09 mmol) wasadded. The reaction mixture was stirred at 80 C for 30 min. 1-(2-Chloroethyl)piperidine hydrochloride (4.30 g, 23.36 mmol) or 3-chloropropylpiperidine hydrochloride (5.5 g, 28 mmol) was addedand the reaction mixture was stirred at 80 C for another 12 h. Theinorganics were removed by filtration and the solvent was evaporated.The residue was purified by flash chromatography (DCM/MeOH(NH3), 9.8:0.2 (v/v)) to afford compounds 2 and 3.
19932-85-5, 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.,19932-85-5 ,6-Bromobenzo[d]oxazol-2(3H)-one, other downstream synthetic routes, hurry up and to see
Reference：
Article; Gay, Marion; Evrard, Caroline; Descamps, Florian; Carato, Pascal; Renault, Nicolas; Coevoet, Mathilde; Eddarkaoui, Sabiha; Baud, Catherine; Larchanche, Paul-Emmanuel; Buee, Luc; El Bakali, Jamal; Vingtdeux, Valerie; Sergeant, Nicolas; Melnyk, Patricia; European Journal of Medicinal Chemistry; vol. 159; (2018); p. 104 – 125;,
Benzoxazole – Wikipedia
Benzoxazole | C7H5NO – PubChem