SU474534A1 - The method of obtaining 4-nitropyridine - Google Patents

The method of obtaining 4-nitropyridine

Info

Publication number
SU474534A1
SU474534A1 SU1962965A SU1962965A SU474534A1 SU 474534 A1 SU474534 A1 SU 474534A1 SU 1962965 A SU1962965 A SU 1962965A SU 1962965 A SU1962965 A SU 1962965A SU 474534 A1 SU474534 A1 SU 474534A1
Authority
SU
USSR - Soviet Union
Prior art keywords
nitropyridine
obtaining
nitration
pyridine
carried out
Prior art date
Application number
SU1962965A
Other languages
Russian (ru)
Inventor
Юрий Васильевич Курбатов
Ольга Сергеевна Отрощенко
Абид Садыкович Садыков
Давлат Сулейманов
Original Assignee
Самаркандский Государственный Университет Им.А.Навои
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Самаркандский Государственный Университет Им.А.Навои filed Critical Самаркандский Государственный Университет Им.А.Навои
Priority to SU1962965A priority Critical patent/SU474534A1/en
Application granted granted Critical
Publication of SU474534A1 publication Critical patent/SU474534A1/en

Links

Description

3 водорода в уксусной кислоте, нитрованием N-окиси пиридина смесью азотной и серной кислот, восстановлением N-окнси 4-нитропиридина дезоксидирующим реагентом при 130-200°С с последующим выделением про-5 дукта известными нриемами, отличающий4 с   тем, что, с целью увеличени  выхода и ускорени  процесса, окисление пиридина нровод т в присутствии каталитического количества карбамида, нитрование ведут при 90°С, а в качестве дезоксидирующего реагента используют элементарную серу.3 hydrogen in acetic acid, nitration of pyridine N-oxide with a mixture of nitric and sulfuric acids, reduction of N-oxo 4-nitropyridine with a deoxidizing reagent at 130–200 ° C, followed by separation of the pro-5 duct by known uses, which differ increasing the yield and accelerating the process, the oxidation of pyridine is carried out in the presence of a catalytic amount of urea, nitration is carried out at 90 ° C, and elemental sulfur is used as a deoxidizing agent.

SU1962965A 1973-09-20 1973-09-20 The method of obtaining 4-nitropyridine SU474534A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1962965A SU474534A1 (en) 1973-09-20 1973-09-20 The method of obtaining 4-nitropyridine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1962965A SU474534A1 (en) 1973-09-20 1973-09-20 The method of obtaining 4-nitropyridine

Publications (1)

Publication Number Publication Date
SU474534A1 true SU474534A1 (en) 1975-06-25

Family

ID=20565590

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1962965A SU474534A1 (en) 1973-09-20 1973-09-20 The method of obtaining 4-nitropyridine

Country Status (1)

Country Link
SU (1) SU474534A1 (en)

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