In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called The preparation of some ketones in the furan ring, published in 1930, which mentions a compound: 3194-15-8, Name is 1-(Furan-2-yl)propan-1-one, Molecular C7H8O2, Synthetic Route of C7H8O2.
M. prepared several ketones of the furan ring in the following way: The diethylamide of the pyromucic acid was prepared from the acid chloride and NHEt2. EtMgBr and PrMgBr were allowed to react upon the diethylamide, giving 80-85% of the corresponding ketones. The Et and Pr furyl ketones so formed were found to be identical with those prepared by Asahina and Murayama. The pyromucyl chloride was prepared by treating the acid with SOCl2 (yield 40%) or better with PCl5 (yield 70-80%).
The article 《The preparation of some ketones in the furan ring》 also mentions many details about this compound(3194-15-8)Synthetic Route of C7H8O2, you can pay attention to it, because details determine success or failure
Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem