Synthesis of 2-thiophenecarboxylic and 2,5-thiophenedicarboxylic acid esters via the reaction of thiophenes with the CCl4-ROH reagent in the presence of vanadium, iron, and molybdenum catalysts
| Autor: | A. A. Smirnov, Usein M. Dzhemilev, R. R. Mukminov, N. A. Shchadneva, A. R. Baiguzina, Ravil I. Khusnutdinov, Yu. Yu. Mayakova |
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| Rok vydání: | 2008 |
| Předmět: |
General Chemical Engineering
Energy Engineering and Power Technology chemistry.chemical_element Vanadium General Chemistry Alkylation Medicinal chemistry Catalysis chemistry.chemical_compound Fuel Technology chemistry Geochemistry and Petrology Molybdenum Reagent Yield (chemistry) Carbon tetrachloride Thiophene Organic chemistry |
| Zdroj: | Petroleum Chemistry. 48:471-478 |
| ISSN: | 1555-6239 0965-5441 |
| DOI: | 10.1134/s0965544108060121 |
| Popis: | 2-Thiophenecarboxylic and 2,5-thiohenedicarboxylic acid esters were synthesized via the reaction of thiophene with the CCl4-ROH-catalyst system, with a total yield of 44–85%. A possible reaction scheme includes the successive steps of alkylation of thiophene with carbon tetrachloride, leading to 2-trichloromethylthiophene, and alcoholysis of the product giving the corresponding 2-thiophenecarboxylate. The best catalysts for this reaction are VO(acac)2, Fe(acac)3, and Mo(CO)6. |
| Databáze: | OpenAIRE |
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