GB603498A - Improvements in or relating to the chloroethylation of alkylated benzene compounds - Google Patents

Improvements in or relating to the chloroethylation of alkylated benzene compounds

Info

Publication number
GB603498A
GB603498A GB2770945A GB2770945A GB603498A GB 603498 A GB603498 A GB 603498A GB 2770945 A GB2770945 A GB 2770945A GB 2770945 A GB2770945 A GB 2770945A GB 603498 A GB603498 A GB 603498A
Authority
GB
United Kingdom
Prior art keywords
mixture
reaction
paraldehyde
zinc chloride
ether
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
GB2770945A
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.)
Distillers Co Yeast Ltd
Distillers Co Ltd
Original Assignee
Distillers Co Yeast Ltd
Distillers Co Ltd
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 BE468647D priority Critical patent/BE468647A/xx
Application filed by Distillers Co Yeast Ltd, Distillers Co Ltd filed Critical Distillers Co Yeast Ltd
Priority to GB2770945A priority patent/GB603498A/en
Priority to FR935011D priority patent/FR935011A/en
Publication of GB603498A publication Critical patent/GB603498A/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
    • C07C17/26—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton
    • C07C17/32—Preparation of halogenated hydrocarbons by reactions involving an increase in the number of carbon atoms in the skeleton by introduction of halogenated alkyl groups into ring compounds

Landscapes

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

Abstract

Alpha - chlorethyl - polymethyl benzenes are made by reacting di-(alpha-chlorethyl) ether with a polymethyl benzene having at least one nuclear hydrogen atom in presence of zinc chloride at -15 DEG C. to +15 DEG C., whilst limiting the water content of the mixture throughout the reaction to a value not exceeding 50 per cent by weight based on the weight of zinc chloride. The reaction is assisted by the presence of hydrogen chloride. The di-(alphachlorethyl) ether may be prepared in situ by reaction of hydrogen chloride with acetaldehyde or substances decomposable under the reaction conditions to give acetaldehyde, e.g. paraldehyde. In examples: (1) pure m-xylene, a commercial mixture of xylenes and a mixture of isomeric trimethylbenzenes containing mesitylene and pseudocumene are each reacted with anhydrous zinc chloride and paraldehyde, while passing in dry hydrogen chloride; (2) xylene is mixed with paraldehyde, the mixture is saturated with hydrogen chloride and the aqueous layer separated; the xylene solution of di-(alphachlorethyl) ether was then treated with zinc chloride. The products may be dehydrochlorinated to give styrene compounds. Specification 603,497 is referred to.
GB2770945A 1945-10-22 1945-10-22 Improvements in or relating to the chloroethylation of alkylated benzene compounds Expired GB603498A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE468647D BE468647A (en) 1945-10-22
GB2770945A GB603498A (en) 1945-10-22 1945-10-22 Improvements in or relating to the chloroethylation of alkylated benzene compounds
FR935011D FR935011A (en) 1945-10-22 1946-10-22 Chloroethylation process of alkylbenzene compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2770945A GB603498A (en) 1945-10-22 1945-10-22 Improvements in or relating to the chloroethylation of alkylated benzene compounds

Publications (1)

Publication Number Publication Date
GB603498A true GB603498A (en) 1948-06-17

Family

ID=10264022

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2770945A Expired GB603498A (en) 1945-10-22 1945-10-22 Improvements in or relating to the chloroethylation of alkylated benzene compounds

Country Status (3)

Country Link
BE (1) BE468647A (en)
FR (1) FR935011A (en)
GB (1) GB603498A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007975A (en) * 1959-04-24 1961-11-07 American Viscose Corp 4, 4'-bis-(chloromethyl)-biphenyl

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007975A (en) * 1959-04-24 1961-11-07 American Viscose Corp 4, 4'-bis-(chloromethyl)-biphenyl

Also Published As

Publication number Publication date
FR935011A (en) 1948-06-08
BE468647A (en)

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