GB675546A - Improvements in or relating to esters of 2, 4-dichlorophenoxy acetic acid - Google Patents

Improvements in or relating to esters of 2, 4-dichlorophenoxy acetic acid

Info

Publication number
GB675546A
GB675546A GB1397450A GB1397450A GB675546A GB 675546 A GB675546 A GB 675546A GB 1397450 A GB1397450 A GB 1397450A GB 1397450 A GB1397450 A GB 1397450A GB 675546 A GB675546 A GB 675546A
Authority
GB
United Kingdom
Prior art keywords
propyl ester
esters
phenoxy
acetic acid
mono
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
GB1397450A
Inventor
Edgar Clay Britton
Louis Edward Begin
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Priority to GB1397450A priority Critical patent/GB675546A/en
Publication of GB675546A publication Critical patent/GB675546A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
    • C07C69/67—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids
    • C07C69/708—Ethers
    • C07C69/712—Ethers the hydroxy group of the ester being etherified with a hydroxy compound having the hydroxy group bound to a carbon atom of a six-membered aromatic ring

Landscapes

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

Abstract

The invention comprises esters of 2 : 4-dichlorophenoxy-acetic acid of the general formula <FORM:0675546/IV (b)/1> where n is 1 or 2 and R is hydrogen or a lower alkyl radical containing from 1-4 carbon atoms. The esters are made by reacting a molecular proportion of 2 : 4-dichlorophenoxy-acetic acid and at least a molecular proportion of an aryl mono-ether of mono-, or di-propylene glycol of the formula <FORM:0675546/IV (b)/2> in the presence of a dehydration catalyst such as sulphuric acid. The reaction may be carried out in the presence of a water immiscible solvent such as ethylene dichloride or the reactants may be heated together and a water immiscible solvent added and the water immiscible solvent added later. In each case the solvent and water are distilled off. In examples the preparation of the following esters are described: (1) the 1-phenoxy-2-propyl ester; (2) the 1-(2-methyl-phenoxy) ester; (3) the 1-(1-phenoxyisopropoxy)-2-propyl ester; (4) the 1-(4-tertiary-butylphenoxy)-2-propyl ester; (5) the 1 - [1 - (4 - secondary butyl phenoxy)-isopropoxy] - 2 - propyl ester; (6) the 1 - (2-secondary butyl phenoxy)-2-propyl ester. The mono-, and di-propylene glycol aryl ethers employed in the esterification may be obtained by the reaction of propylene oxide with phenol or an alkyl phenol in the presence of sodium hydroxide as a catalyst.
GB1397450A 1950-06-05 1950-06-05 Improvements in or relating to esters of 2, 4-dichlorophenoxy acetic acid Expired GB675546A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1397450A GB675546A (en) 1950-06-05 1950-06-05 Improvements in or relating to esters of 2, 4-dichlorophenoxy acetic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1397450A GB675546A (en) 1950-06-05 1950-06-05 Improvements in or relating to esters of 2, 4-dichlorophenoxy acetic acid

Publications (1)

Publication Number Publication Date
GB675546A true GB675546A (en) 1952-07-09

Family

ID=10032746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1397450A Expired GB675546A (en) 1950-06-05 1950-06-05 Improvements in or relating to esters of 2, 4-dichlorophenoxy acetic acid

Country Status (1)

Country Link
GB (1) GB675546A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1051277B (en) * 1953-04-06 1959-02-26 Dow Chemical Co Process for the preparation of esters from haloaryloxyalkanols and halopropionic acid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1051277B (en) * 1953-04-06 1959-02-26 Dow Chemical Co Process for the preparation of esters from haloaryloxyalkanols and halopropionic acid

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