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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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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thiophene
acid
producing
acac
methanol
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RU2008139848/04A
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RU2404176C2 (en
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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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  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Pyridine Compounds (AREA)
  • Catalysts (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Heterocyclic Compounds Containing Sulfur Atoms (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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