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RU2008139848A - METHOD FOR PRODUCING 2,5-THIOFENEDICARBOXYLIC ACID FROM THIOPHENE - Google Patents

METHOD FOR PRODUCING 2,5-THIOFENEDICARBOXYLIC ACID FROM THIOPHENE Download PDF

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Publication number
RU2008139848A
RU2008139848A RU2008139848/04A RU2008139848A RU2008139848A RU 2008139848 A RU2008139848 A RU 2008139848A RU 2008139848/04 A RU2008139848/04 A RU 2008139848/04A RU 2008139848 A RU2008139848 A RU 2008139848A RU 2008139848 A RU2008139848 A RU 2008139848A
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Russia
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thiophene
acid
producing
acac
methanol
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RU2008139848/04A
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Russian (ru)
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RU2404176C2 (en
Inventor
Усеин Меметович Джемилев (RU)
Усеин Меметович Джемилев
Равил Исмагилович Хуснутдинов (RU)
Равил Исмагилович Хуснутдинов
Альфия Руслановна Байгузина (RU)
Альфия Руслановна Байгузина
Ринат Рифхатович Мукминов (RU)
Ринат Рифхатович Мукминов
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Институт нефтехимии и катализа РАН (RU)
Институт нефтехимии и катализа РАН
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Priority to RU2008139848/04A priority Critical patent/RU2404176C2/en
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  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Heterocyclic Compounds Containing Sulfur Atoms (AREA)
  • Pyridine Compounds (AREA)
  • Catalysts (AREA)

Abstract

Способ получения диметилового эфира 2,5-тиофендикарбоновой кислоты I ! ! взаимодействием тиофена с метанолом и CCl4 в присутствии катализатора при Т=150°С в течение 6 ч, отличающийся тем, что в качестве катализатора используют трис(2,4-пентанодионато)железа Fe(acac)3, активированного азотсодержащим лигандом - хинолином или пиридином, и мольное соотношение [Fe(acac)3] : [лиганд] : [тиофен] : [метанол] : [CCl4] составляет 0.04:0.4:4:45:30. The method of producing dimethyl ether of 2,5-thiophenedicarboxylic acid I! ! the interaction of thiophene with methanol and CCl4 in the presence of a catalyst at T = 150 ° C for 6 hours, characterized in that the catalyst used is tris (2,4-pentanodionato) iron Fe (acac) 3, activated with a nitrogen-containing ligand - quinoline or pyridine and the molar ratio [Fe (acac) 3]: [ligand]: [thiophene]: [methanol]: [CCl4] is 0.04: 0.4: 4: 45: 30.

Claims (1)

Способ получения диметилового эфира 2,5-тиофендикарбоновой кислоты IThe method of producing dimethyl ether of 2,5-thiophenedicarboxylic acid I
Figure 00000001
Figure 00000001
 взаимодействием тиофена с метанолом и CCl4 в присутствии катализатора при Т=150°С в течение 6 ч, отличающийся тем, что в качестве катализатора используют трис(2,4-пентанодионато)железа Fe(acac)3, активированного азотсодержащим лигандом - хинолином или пиридином, и мольное соотношение [Fe(acac)3] : [лиганд] : [тиофен] : [метанол] : [CCl4] составляет 0.04:0.4:4:45:30. the interaction of thiophene with methanol and CCl 4 in the presence of a catalyst at T = 150 ° C for 6 hours, characterized in that the catalyst used is tris (2,4-pentanodionato) iron Fe (acac) 3 , activated by a nitrogen-containing ligand - quinoline or pyridine, and the molar ratio of [Fe (acac) 3 ]: [ligand]: [thiophene]: [methanol]: [CCl 4 ] is 0.04: 0.4: 4: 45: 30.
RU2008139848/04A 2008-10-07 2008-10-07 Method of producing dimethyl ether of 2,5-thiophene dicarboxylic acid from thiophene RU2404176C2 (en)

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RU2008139848/04A RU2404176C2 (en) 2008-10-07 2008-10-07 Method of producing dimethyl ether of 2,5-thiophene dicarboxylic acid from thiophene

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US2900386A (en) * 1955-11-04 1959-08-18 Henkel & Cie Gmbh Production of heterocyclic dicarboxylic acids

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Effective date: 20101008