The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Utilization of β-oxo diesters in the synthesis of β-diketone esters》. Authors are Gelin, Rene; Gelin, Suzanne; Poimboeuf, Jean Glaude.The article about the compound:Ethyl 3-Ethoxy-2-Propenoatecas:1001-26-9,SMILESS:O=C(OCC)/C=C/OCC).Synthetic Route of C7H12O3. Through the article, more information about this compound (cas:1001-26-9) is conveyed.
β-Oxo diesters, EtO2C(CH2)nCO CH2CO2Et, (I), synthesized by a new rapid method (CA 61, 4209c) were converted into ethoxymagnesium derivatives, which on reaction with various acid chlorides yielded α-acyl β-oxodiesters EtO2C(CH2)nCOCH(COR)CO2Et (II). On decarboxylation (loc. cit.) these yielded the β-diketone esters, EtO2C(CH2)n,COCH2COR (III). III gave cupric derivatives which were utilized in purification They showed an intense ir absorption at 1610 cm.-1 (enolized β-diketone).
As far as I know, this compound(1001-26-9)Synthetic Route of C7H12O3 can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.
Reference:
Bromide – Wikipedia,
bromide – Wiktionary