GB464859A - Process of chlorinating methyl-aromatic compounds - Google Patents

Process of chlorinating methyl-aromatic compounds

Info

Publication number
GB464859A
GB464859A GB2580735A GB2580735A GB464859A GB 464859 A GB464859 A GB 464859A GB 2580735 A GB2580735 A GB 2580735A GB 2580735 A GB2580735 A GB 2580735A GB 464859 A GB464859 A GB 464859A
Authority
GB
United Kingdom
Prior art keywords
xylene
chloro
aromatic compounds
chlorine
methyl
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2580735A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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
Priority to DEI42999D priority Critical patent/DE575593C/en
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB2580735A priority patent/GB464859A/en
Priority to US51710A priority patent/US2132361A/en
Priority to FR798727D priority patent/FR798727A/en
Publication of GB464859A publication Critical patent/GB464859A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
    • C07C17/14—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms in the side-chain of aromatic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Methyl-aromatic compounds are chlorinated fully in the side-chains by conducting the chlorination, assisted by a raised temperature and by exposure to light, with a current of chlorine which at least during the later stages of the reaction is passed at such a speed that the resulting hydrogen chloride is quickly expelled by the excess chlorine, for example, at such a speed that not more than one-third of the chlorine introduced is consumed. A preferred temperature range is 100--150 DEG C. In examples, the following compounds are fully chlorinated in the methyl groups: m-xylene, 1-chloro-2.4-dimethylbenzene, 1.3-dichloro-4.6-dimethylbenzene, p-xylene, chloro-p-xylene, p-chlortoluene, toluene, o-chlortoluene, 2.4-dichlortoluene, mesitylene and chloro-mesitylene.
GB2580735A 1931-11-10 1935-09-17 Process of chlorinating methyl-aromatic compounds Expired GB464859A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DEI42999D DE575593C (en) 1931-11-10 1931-11-10 Process for the production of aromatic hydrocarbons fluorinated in the side chain
GB2580735A GB464859A (en) 1935-09-17 1935-09-17 Process of chlorinating methyl-aromatic compounds
US51710A US2132361A (en) 1934-12-05 1935-11-26 Process of chlorinating methylaromatic compounds
FR798727D FR798727A (en) 1934-12-05 1935-12-05 Process for the chlorination of methyl aromatic compounds in their side chains

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2580735A GB464859A (en) 1935-09-17 1935-09-17 Process of chlorinating methyl-aromatic compounds

Publications (1)

Publication Number Publication Date
GB464859A true GB464859A (en) 1937-04-19

Family

ID=10233624

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2580735A Expired GB464859A (en) 1931-11-10 1935-09-17 Process of chlorinating methyl-aromatic compounds

Country Status (1)

Country Link
GB (1) GB464859A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2566052A (en) * 1944-06-28 1951-08-28 Walter S Beanblossom Process for photochemical chlorination of hydrocarbons
CN104230653A (en) * 2014-09-22 2014-12-24 潜江新亿宏有机化工有限公司 Manufacturing technology of p-xylylene dichloride
CN113173831A (en) * 2021-04-08 2021-07-27 宜都市友源实业有限公司 Production system and process for continuous chlorination of trichlorotoluene

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2566052A (en) * 1944-06-28 1951-08-28 Walter S Beanblossom Process for photochemical chlorination of hydrocarbons
CN104230653A (en) * 2014-09-22 2014-12-24 潜江新亿宏有机化工有限公司 Manufacturing technology of p-xylylene dichloride
CN113173831A (en) * 2021-04-08 2021-07-27 宜都市友源实业有限公司 Production system and process for continuous chlorination of trichlorotoluene
CN113173831B (en) * 2021-04-08 2024-01-19 宜都市友源实业有限公司 Production system and process for continuous chlorination of trichlorotoluene

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