SU664955A1 - Method of obtaining bromtoluenes - Google Patents

Method of obtaining bromtoluenes

Info

Publication number
SU664955A1
SU664955A1 SU772502686A SU2502686A SU664955A1 SU 664955 A1 SU664955 A1 SU 664955A1 SU 772502686 A SU772502686 A SU 772502686A SU 2502686 A SU2502686 A SU 2502686A SU 664955 A1 SU664955 A1 SU 664955A1
Authority
SU
USSR - Soviet Union
Prior art keywords
bromotoluene
obtaining
possibility
catalyst
mole
Prior art date
Application number
SU772502686A
Other languages
Russian (ru)
Inventor
Юрий Яковлевич Фиалков
Светлана Всеволодовна Забегайло
Алексей Петрович Килимов
Лариса Ивановна Романова
Владимир Никифорович Прокшиц
Original Assignee
Волгоградский Государственный Педагогический Институт Им.А.С.Серафимовича
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 Волгоградский Государственный Педагогический Институт Им.А.С.Серафимовича filed Critical Волгоградский Государственный Педагогический Институт Им.А.С.Серафимовича
Priority to SU772502686A priority Critical patent/SU664955A1/en
Application granted granted Critical
Publication of SU664955A1 publication Critical patent/SU664955A1/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (1)

3 Такой же эффект дают ди- и трибензолсульфохлориды , а также моно-, ди- и тритолзолсульфохлориды . Использование предлагаемого способа5 бромировани  обеспечивает по сравнению с известным способом следующие преимущества: возможность получени  индивидуального о-бромтолуола; устранение необходимости разделени  смеси изомеров; сни-10 жение расхода катализатора; возможность упрощени  технологической схемы нолучени  продуктов. 4 Формула изобретени  Способ получени  бромтолуолов путей бромировани  толуола бромом в присутствии катализатора, отличающийс  тем, что, с целью преимущественного получени  о-бромтолуола, в качестве катализатора используют арилеульфохлорид в количестве 2,5-10 ---0,2-10- моль на 1 моль толзола. Источники информации, прин тые во внимание при экспертизе 1. Ворожцов Н. Н. Основы синтеза промежуточных продуктов и красителей. М., «Госхимиздат, 1959, с. 35.3 The same effect is given by di- and tribenzenesulfonyl chlorides, as well as mono-, di-, and tritolzolsulfonchlorides. The use of the proposed method of 5-bromination provides, in comparison with the known method, the following advantages: the possibility of obtaining individual o-bromotoluene; eliminating the need for separation of the isomer mixture; reduction of catalyst consumption; the possibility of simplifying the technological scheme of obtaining products. 4 The claims of the method for producing bromotoluene brominating pathways of toluene with bromine in the presence of a catalyst, characterized in that, in order to predominantly obtain o-bromotoluene, aryle sulfon chloride in an amount of 2.5-10 --- 0.2-10 mole per 1 mole of tolzol. Sources of information taken into account in the examination 1. N. Vorozhtsov. Fundamentals of synthesis of intermediate products and dyes. M., “Goskhimizdat, 1959, p. 35
SU772502686A 1977-07-06 1977-07-06 Method of obtaining bromtoluenes SU664955A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772502686A SU664955A1 (en) 1977-07-06 1977-07-06 Method of obtaining bromtoluenes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772502686A SU664955A1 (en) 1977-07-06 1977-07-06 Method of obtaining bromtoluenes

Publications (1)

Publication Number Publication Date
SU664955A1 true SU664955A1 (en) 1979-05-30

Family

ID=20715984

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772502686A SU664955A1 (en) 1977-07-06 1977-07-06 Method of obtaining bromtoluenes

Country Status (1)

Country Link
SU (1) SU664955A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5015792A (en) * 1988-04-22 1991-05-14 Rhone-Poulenc Chimie Preparation of 4,4'-dibromobiphenyl

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5015792A (en) * 1988-04-22 1991-05-14 Rhone-Poulenc Chimie Preparation of 4,4'-dibromobiphenyl

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