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GB855504A - Preparation of 2-methyl-4-chloro-phenoxy alkanoic acids - Google Patents

Preparation of 2-methyl-4-chloro-phenoxy alkanoic acids

Info

Publication number
GB855504A
GB855504A GB990558A GB990558A GB855504A GB 855504 A GB855504 A GB 855504A GB 990558 A GB990558 A GB 990558A GB 990558 A GB990558 A GB 990558A GB 855504 A GB855504 A GB 855504A
Authority
GB
United Kingdom
Prior art keywords
methyl
chloro
preparation
alkanoic acids
phenoxy alkanoic
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
GB990558A
Inventor
Patrick Anthony Mccrea
William Lake Norris
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.)
BRITISH SCHERING Ltd
Original Assignee
BRITISH SCHERING 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
Application filed by BRITISH SCHERING Ltd filed Critical BRITISH SCHERING Ltd
Priority to GB990558A priority Critical patent/GB855504A/en
Publication of GB855504A publication Critical patent/GB855504A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C59/40—Unsaturated compounds
    • C07C59/58—Unsaturated compounds containing ether groups, groups, groups, or groups
    • C07C59/64—Unsaturated compounds containing ether groups, groups, groups, or groups containing six-membered aromatic rings
    • C07C59/66—Unsaturated compounds containing ether groups, groups, groups, or groups containing six-membered aromatic rings the non-carboxylic part of the ether containing six-membered aromatic rings
    • C07C59/68—Unsaturated compounds containing ether groups, groups, groups, or groups containing six-membered aromatic rings the non-carboxylic part of the ether containing six-membered aromatic rings the oxygen atom of the ether group being bound to a non-condensed six-membered aromatic ring
    • C07C59/70—Ethers of hydroxy-acetic acid, e.g. substitutes on the ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
    • C07C51/363—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by introduction of halogen; by substitution of halogen atoms by other halogen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C59/00—Compounds having carboxyl groups bound to acyclic carbon atoms and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • C07C59/40—Unsaturated compounds
    • C07C59/58—Unsaturated compounds containing ether groups, groups, groups, or groups
    • C07C59/64—Unsaturated compounds containing ether groups, groups, groups, or groups containing six-membered aromatic rings
    • C07C59/66—Unsaturated compounds containing ether groups, groups, groups, or groups containing six-membered aromatic rings the non-carboxylic part of the ether containing six-membered aromatic rings
    • C07C59/68—Unsaturated compounds containing ether groups, groups, groups, or groups containing six-membered aromatic rings the non-carboxylic part of the ether containing six-membered aromatic rings the oxygen atom of the ether group being bound to a non-condensed six-membered aromatic ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

2-Methyl-4-chlorophenoxy-acetic, -propionic or -butyric acid is produced by a process which comprises chlorinating the corresponding 2-methyl-phenoxy aliphatic acid sodium salt with chlorine in an aqueous medium at a temperature not exceeding 40 DEG C. in the presence of excess sodium bicarbonate. Examples in which 2-methyl-4-chlorophenoxyacetic acid is produced are furnished. Specifications 744,475 and 793,740 are referred to.
GB990558A 1958-03-27 1958-03-27 Preparation of 2-methyl-4-chloro-phenoxy alkanoic acids Expired GB855504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB990558A GB855504A (en) 1958-03-27 1958-03-27 Preparation of 2-methyl-4-chloro-phenoxy alkanoic acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB990558A GB855504A (en) 1958-03-27 1958-03-27 Preparation of 2-methyl-4-chloro-phenoxy alkanoic acids

Publications (1)

Publication Number Publication Date
GB855504A true GB855504A (en) 1960-11-30

Family

ID=9880970

Family Applications (1)

Application Number Title Priority Date Filing Date
GB990558A Expired GB855504A (en) 1958-03-27 1958-03-27 Preparation of 2-methyl-4-chloro-phenoxy alkanoic acids

Country Status (1)

Country Link
GB (1) GB855504A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055357A1 (en) * 1980-12-31 1982-07-07 BASF Aktiengesellschaft Process for the preparation of chlorinated phenoxyalkanoic acids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0055357A1 (en) * 1980-12-31 1982-07-07 BASF Aktiengesellschaft Process for the preparation of chlorinated phenoxyalkanoic acids

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