RU2010141245A - METHOD FOR PRODUCING METHYL ETHER 2-BENZO [b] FURANCARBOXYLIC ACID - Google Patents

METHOD FOR PRODUCING METHYL ETHER 2-BENZO [b] FURANCARBOXYLIC ACID Download PDF

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RU2010141245A
RU2010141245A RU2010141245/04A RU2010141245A RU2010141245A RU 2010141245 A RU2010141245 A RU 2010141245A RU 2010141245/04 A RU2010141245/04 A RU 2010141245/04A RU 2010141245 A RU2010141245 A RU 2010141245A RU 2010141245 A RU2010141245 A RU 2010141245A
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benzo
iron
furancarboxylic acid
methyl ether
methanol
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RU2010141245/04A
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Russian (ru)
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RU2455299C2 (en
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Усеин Меметович Джемилев (RU)
Усеин Меметович Джемилев
Равил Исмагилович Хуснутдинов (RU)
Равил Исмагилович Хуснутдинов
Альфия Рсулановна Байгузина (RU)
Альфия Рсулановна Байгузина
Ринат Рифхатович Мукминов (RU)
Ринат Рифхатович Мукминов
Ришат Ишбирдович Аминов (RU)
Ришат Ишбирдович Аминов
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Учреждение Российской академии наук ИНСТИТУТ НЕФТЕХИМИИ И КАТАЛИЗА РАН (RU)
Учреждение Российской Академии Наук Институт Нефтехимии И Катализа Ран
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  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

Способ получения метилового эфира 2-бензо[b]фуранкарбоновой кислоты формулы ! !характеризующийся тем, что бензо[b]фуран подвергают взаимодействию с CBr4 и метанолом в присутствии железосодержащего катализатора - ферроцена (Fe(C5H5)2), или ацетилацетоната железа (III), или бромида железа (II) и радикального инициатора - H2O2 при мольном соотношении [катализатор]:[H2O2]:[бензо[b]фуранфуран]:[CBr4]:[метанол]=1:5:100:200:1000-1100, при температуре 90-110°C в течение 8-10 ч в атмосфере аргона. The method of obtaining methyl ester of 2-benzo [b] furancarboxylic acid of the formula! ! characterized in that benzo [b] furan is reacted with CBr4 and methanol in the presence of an iron-containing catalyst - ferrocene (Fe (C5H5) 2), or iron (III) acetylacetonate, or iron (II) bromide and a radical initiator - H2O2 in molar ratio [catalyst]: [H2O2]: [benzo [b] furanfuran]: [CBr4]: [methanol] = 1: 5: 100: 200: 1000-1100, at a temperature of 90-110 ° C for 8-10 hours in an argon atmosphere.

Claims (1)

Способ получения метилового эфира 2-бензо[b]фуранкарбоновой кислоты формулыThe method of obtaining methyl ester of 2-benzo [b] furancarboxylic acid of the formula
Figure 00000001
Figure 00000001
 характеризующийся тем, что бензо[b]фуран подвергают взаимодействию с CBr4 и метанолом в присутствии железосодержащего катализатора - ферроцена (Fe(C5H5)2), или ацетилацетоната железа (III), или бромида железа (II) и радикального инициатора - H2O2 при мольном соотношении [катализатор]:[H2O2]:[бензо[b]фуранфуран]:[CBr4]:[метанол]=1:5:100:200:1000-1100, при температуре 90-110°C в течение 8-10 ч в атмосфере аргона. characterized in that benzo [b] furan is reacted with CBr 4 and methanol in the presence of an iron-containing catalyst - ferrocene (Fe (C 5 H 5 ) 2 ), or iron (III) acetylacetonate, or iron (II) bromide and a radical initiator - H 2 O 2 at a molar ratio of [catalyst]: [H 2 O 2 ]: [benzo [b] furanfuran]: [CBr 4 ]: [methanol] = 1: 5: 100: 200: 1000-1100, at a temperature of 90 -110 ° C for 8-10 hours in an argon atmosphere.
RU2010141245/04A 2010-10-07 2010-10-07 METHOD PRODUCING METHYL ETHER OF 2-BENZO[b]FURAN-CARBOXYLIC ACID RU2455299C2 (en)

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RU2566086C1 (en) * 2014-05-05 2015-10-20 Федеральное государственное бюджетное учреждение науки Институт нефтехимии и катализа Российской академии наук Method of producing alkyl esters of phenanthrene-3-carboxylic acid
CN108299350A (en) * 2017-01-12 2018-07-20 中国科学院宁波材料技术与工程研究所 A kind of preparation method of furan dicarboxylic acid compound

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US4431650A (en) * 1980-12-22 1984-02-14 Union Carbide Corporation Esters of benzofuranyl acids
US4663347A (en) * 1983-10-31 1987-05-05 Merck Frosst Canada, Inc. Benzofuran 2-carboxylic acid esters useful as inhibitors of leukotriene biosynthesis
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