Show metadata Hide metadata

(19)

(11)

2 495 865

(13)

(51)

IPC

C07C231/10(2006-01-01)

C07C233/25(2006-01-01)

(21) (22)

Application

2012129086/04, 2012-07-10

(24)

Start date

2012-07-10

(22)

Actual filing date

2012-07-10

(45)

Published

2013-10-20

(72)

Inventor

Azev Jurij AlekseevichCharushnikov Kirill AleksandrovichGibor Aleksej MikhajlovichMokrushin Vladimir Stepanovich

(73)

Holder

Federal'Noe Gosudarstvennoe Avtonomnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Federal'Nyj Universitet Imeni Pervogo Prezidenta Rossii B.N. El'Tsina"

METHOD OF PRODUCING n-ACETYLAMINOPHENOL Russian patent published in 2013 - IPC C07C231/10 C07C233/25

Abstract RU 2495865 C1

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing n-acetylaminophenol (paracetamol) of formula I . The method involves catalytic reduction of n-nitrosophenol in ethyl acetate while mixing with a Raney-Ni catalyst at hydrogen pressure of 2-4 atm at temperature of 20-50°C, followed by treatment of the obtained n-aminophenol with acetic anhydride and separating the end product.

EFFECT: improved method of producing n-acetylaminophenol.

2 dwg, 3ex

Similar patents RU2495865C1

Title	Year	Author	Number
METHOD FOR PRODUCING PARACETAMOL	2014	Azev Jurij Alekseevich Charushnikov Kirill Aleksandrovich Gibor Aleksej Mikhajlovich Ermakova Ol'Ga Sergeevna Bakulev Vasilij Alekseevich	RU2574733C1
METHOD FOR PRODUCING PARACETAMOL	2011	Azev Jurij Alekseevich Charushnikov Kirill Aleksandrovich Mokrushin Vladimir Stepanovich Gibor Aleksej Mikhajlovich	RU2461543C1
METHOD OF THE PRODUCTION OF PARA-ACETYLAMINOPHENOL	2022	Mustafin Akhat Gazizianovich Gimadieva Alfiia Raisovna Khazimullina Iuliia Zulkifovna Abdrakhmanov Ildus Barievich	RU2800098C1
METHOD OF PHENACETIN OBTAINING	2012	Azev Jurij Alekseevich Charushnikov Kirill Aleksandrovich Mokrushin Vladimir Stepanovich Bakulev Vasilij Alekseevich	RU2546111C2
METHOD AND APPARATUS FOR PRODUCING PARACETAMOL FROM PARA-NITROSOPHENOL AND/OR PARA-NITROPHENOL IN ACETIC ACID MEDIUM	2023	Kucherov Fedor Alekseevich Konstantinov Igor Olegovich Rezekin Igor Gennadevich Amochkin Kirill Aleksandrovich	RU2818763C1
METHOD AND APPARATUS FOR PRODUCING PARACETAMOL FROM PHENOL	2023	Kucherov Fedor Alekseevich Konstantinov Igor Olegovich Rezekin Igor Gennadevich Amochkin Kirill Aleksandrovich	RU2814270C1
METHOD FOR PRODUCING PARACETAMOL	2016	Solodukhina Lyudmila Aleksandrovna Abrosimova Lyudmila Aleksandrovna	RU2668500C2
METHOD FOR PRODUCING PARA-AMINOPHENOL AND ZINC ACETATE BY REDUCTION OF PARA-NITROSOPHENOL WITH METALLIC ZINC IN ACETIC ACID MEDIUM	2023	Kucherov Fedor Alekseevich Rezekin Igor Gennadevich Amochkin Kirill Aleksandrovich Konstantinov Igor Olegovich	RU2798466C1
METHOD AND UNIT FOR OBTAINING PARA-AMINOPHENOL FROM PHENOL BY SEQUENTIAL NITROSATING AND REDUCTION WITH AMMONIUM SULFIDE	2023	Konstantinov Igor Olegovich Rezekin Igor Gennadevich Amochkin Kirill Aleksandrovich Kucherov Fedor Alekseevich	RU2801692C1
METHOD OF PRODUCING 3,4,4Ъ-TRIAMINODIPHENYL ESTER	0	Berezina Rufina Nikolaevna Kornaukhova Lyubov Mikhajlovna Krisanova Galina Ivanovna Lubenets Emma Grigorevna Khmelnitskij Albert Georgievich Yagodina Olga Vladimirovna	SU1583355A1

RU 2 495 865 C1

Authors

Azev Jurij Alekseevich

Charushnikov Kirill Aleksandrovich

Gibor Aleksej Mikhajlovich

Mokrushin Vladimir Stepanovich

Dates

2013-10-20—Published

2012-07-10—Filed