The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Alkylation of furan with olefins. VI. Examination of products of alkylation of furan with olefins by gas chromatography》. Authors are Hillers, S.; Andersons, A.; Berzina, A..The article about the compound:1-(Furan-2-yl)propan-1-onecas:3194-15-8,SMILESS:O=C(C1=CC=CO1)CC).Category: benzoxazole. Through the article, more information about this compound (cas:3194-15-8) is conveyed.
cf. CA 59, 1564h, 5106g. Alkyl furans were identified by gas chromatography at 120-50° in a 3.3-m. long column filled with Celite 545 containing 25% silicone E 301 or dinonyl phthalate. The flow rate of the carrier gas (He) was 1.5 l./hr. The alkyl furans were identified by means of the relation between the log of the retention volume and the number of C atoms in the side chains. In the preparation of chromatographic standards the following new furan derivatives were prepared: 2-propionylfuran (I) hydrazone, b5 91°; I semicarbazone, m. 154°; 2-propyl-5-furylmercuri chloride, m. 99°; 2-butyrylfuran (II) hydrazone, b5 95°; II semicarbazone, m. 180-1°; 2-butyl-5-furylmercuri chloride, m. 77°.
There are many compounds similar to this compound(3194-15-8)Category: benzoxazole. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.
Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem