RU2003126825A - Способ получения 5,6-бензтиохроманона-4 - Google Patents

Способ получения 5,6-бензтиохроманона-4 Download PDF

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Publication number
RU2003126825A
RU2003126825A RU2003126825/04A RU2003126825A RU2003126825A RU 2003126825 A RU2003126825 A RU 2003126825A RU 2003126825/04 A RU2003126825/04 A RU 2003126825/04A RU 2003126825 A RU2003126825 A RU 2003126825A RU 2003126825 A RU2003126825 A RU 2003126825A
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RU
Russia
Prior art keywords
benzthiochromanone
producing
naphthylthiopropionitrile
cyclocondensation
polyphosphoric acid
Prior art date
Application number
RU2003126825/04A
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English (en)
Other versions
RU2243225C1 (ru
Inventor
Нина Петровна Герасимова (RU)
Нина Петровна Герасимова
Валентина Владимировна Ермолаева (RU)
Валентина Владимировна Ермолаева
Николай Алексеевич Ножнин (RU)
Николай Алексеевич Ножнин
Юрий Александрович Москвичев (RU)
Юрий Александрович Москвичев
Евгений Михайлович Алов (RU)
Евгений Михайлович Алов
Original Assignee
Ярославский государственный технический университет (RU)
Ярославский государственный технический университет
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Application filed by Ярославский государственный технический университет (RU), Ярославский государственный технический университет filed Critical Ярославский государственный технический университет (RU)
Priority to RU2003126825/04A priority Critical patent/RU2243225C1/ru
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Publication of RU2243225C1 publication Critical patent/RU2243225C1/ru
Publication of RU2003126825A publication Critical patent/RU2003126825A/ru

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Claims (1)

  1. Способ получения 5,6-бензтиохроманона-4[3Н-нафто(2,1-В)тиопиран-1(2Н)-она] путем циклоконденсации 2-нафтилтиопропионитрила при повышенной температуре в присутствии полифосфорной кислоты с последующим гидролизом образовавшегося хроманимина и выделением целевого продукта, отличающийся тем, что циклоконденсацию проводят в течение 0,5-4 ч при температуре 80-120°С и молярном соотношении 2-нафтилтиопропионитрил : полифосфорная кислота, равном 1:3-6.
RU2003126825/04A 2003-09-01 2003-09-01 Способ получения 5,6-бензтиохроманона-4 RU2243225C1 (ru)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2003126825/04A RU2243225C1 (ru) 2003-09-01 2003-09-01 Способ получения 5,6-бензтиохроманона-4

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2003126825/04A RU2243225C1 (ru) 2003-09-01 2003-09-01 Способ получения 5,6-бензтиохроманона-4

Publications (2)

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RU2243225C1 RU2243225C1 (ru) 2004-12-27
RU2003126825A true RU2003126825A (ru) 2005-02-27

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RU2003126825/04A RU2243225C1 (ru) 2003-09-01 2003-09-01 Способ получения 5,6-бензтиохроманона-4

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Publication number Publication date
RU2243225C1 (ru) 2004-12-27

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MM4A The patent is invalid due to non-payment of fees

Effective date: 20070902