As a common heterocyclic compound, it belongs to benzoxazole compound, name is 6-Bromobenzo[d]oxazol-2(3H)-one, and cas is 19932-85-5, its synthesis route is as follows.
Intermediate 1.3-al IyI-2-oxo-2,3-dihydro-1 ,3-benzoxazole-6-carbonitrileTo a solution of 2-oxo-2,3-dihydrobenzo[d]oxazole-6-carbonitrile (210mg, 1.31 mmol, that product was synthesized by a mixture of 6-bromo-1 ,3-benzoxazol-2(3H)-one (2 g; 9.34 mmol) and copper (I) cyanide (1.42 g; 15.86 mmol) in 6 ml DMF, heated at 150C under nitrogen atmosphere for 22 hr. After cooling to room temperature, a solution of 1 .55 g (31 .6 mmol) of sodium cyanide in 32 ml water is added followed by 1 hr stirring. The system is extracted thoroughly with ethyl acetate, washed with brine, dried and concentrated in vacuum) in acetonitrile (4mL) was added potassium carbonate (362mg, 2.62mmol) and potassium iodide (43mg, 0.26mmol) in a sealed tub. Then 3- bromoprop-1-ene (0.9mL, 10.4mmol) was added to the reaction. The mixture was stirred overnight at 70C. The solid residue was filtrated through Celite. The solvent of the filtrate was removed under reduced pressure and the crude obtained was treated with ether giving a solid (1 50mg, 57% yield), which was used in the next step without further purification.LRMS (m/z): 201 (M+1)+.
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：
Patent; ALMIRALL, S.A.; SOLE FEU, Laia; CARRANCO MORUNO, Ines; AIGUADE BOSCH, Jose; PUIG DURAN, Carlos; FONQUERNA POU, Silvia; WO2014/95920; (2014); A1;,
Benzoxazole – Wikipedia
Benzoxazole | C7H5NO – PubChem