Lin, Sheng-Nan; Chen, Yu; Luo, Xiao-Dong; Li, Yi published their research in European Journal of Organic Chemistry in 2021. The article was titled 《Sustainable Cascades to Difluoroalkylated Polycyclic Imidazoles》.Recommanded Product: Methyl 4-fluoro-3-nitrobenzoate The article contains the following contents:
Herein a visible light promoted difluoroalkylated cascade of imidazoles and alkenes e.g., I to afford highly functionalized polycyclic imidazoles e.g., II was reported. This method features a direct radical cyclization of imidazoles with alkenes e.g., I using BrCF2R (R = C(O)OEt, N-cyclohexylcarbamoyl, (thiomorpholin-4-yl)carbonyl, etc.) as radical sources. The reaction conditions tolerate a wide range of substrate scope and afford the desired products e.g., II with up to 95% isolated yield under mild conditions. Radical-trapping and light-on/off experiments indicated a photocatalytic radical mechanism. In the experimental materials used by the author, we found Methyl 4-fluoro-3-nitrobenzoate(cas: 329-59-9Recommanded Product: Methyl 4-fluoro-3-nitrobenzoate)
Methyl 4-fluoro-3-nitrobenzoate(cas: 329-59-9) belongs to methyl benzoate. Methyl benzoate reacts at both the ring and the ester, depending on the substrate. Electrophiles attack the ring, illustrated by acid-catalysed nitration with nitric acid to give methyl 3-nitrobenzoate.Recommanded Product: Methyl 4-fluoro-3-nitrobenzoateMethyl 4-fluoro-3-nitrobenzoate is used to prepare dimethyl 3-nitro-3′,4-oxydibenzoate by reacting with 3-hydroxy-benzoic acid methyl ester.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics