GB466504A - Improvements in or relating to the synthesis of esters of methacrylic acid - Google Patents

Improvements in or relating to the synthesis of esters of methacrylic acid

Info

Publication number
GB466504A
GB466504A GB3306235A GB3306235A GB466504A GB 466504 A GB466504 A GB 466504A GB 3306235 A GB3306235 A GB 3306235A GB 3306235 A GB3306235 A GB 3306235A GB 466504 A GB466504 A GB 466504A
Authority
GB
United Kingdom
Prior art keywords
acid
esters
relating
synthesis
methacrylic acid
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
GB3306235A
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.)
ALLAN COLEY WAINE
Pilkington Automotive Ltd
Original Assignee
ALLAN COLEY WAINE
Triplex Safety Glass 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 ALLAN COLEY WAINE, Triplex Safety Glass Co filed Critical ALLAN COLEY WAINE
Priority to GB3306235A priority Critical patent/GB466504A/en
Publication of GB466504A publication Critical patent/GB466504A/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
    • C07C69/675—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 of saturated hydroxy-carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/18—Preparation of carboxylic acid esters by conversion of a group containing nitrogen into an ester group
    • C07C67/22—Preparation of carboxylic acid esters by conversion of a group containing nitrogen into an ester group from nitriles

Landscapes

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

Abstract

Methyl methacrylate is manufactured by converting acetone cyanhydrin into a -hydroxyisobutyric acid by hydrolysis, converting the acid into its methyl ester by treating its alkali metal (e.g. sodium or potassium) salt with a methylating agent, and treating the ester with a dehydrating agent. In an example, crude acetone cyanhydrin is hydrolyzed by means of hydrochloric acid, the a -hydroxyisobutyric acid is neutralized with caustic soda, the sodium salt is suspended in acetone and treated with dimethyl sulphate, and the resulting methyl ester is treated with phosphorus pentoxide in the presence of hydroquinone. Specifications 300,040, [Class 2 (iii)], 359,262, 395,687, 410,208, and 416,007 are referred to.
GB3306235A 1935-11-28 1935-11-28 Improvements in or relating to the synthesis of esters of methacrylic acid Expired GB466504A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3306235A GB466504A (en) 1935-11-28 1935-11-28 Improvements in or relating to the synthesis of esters of methacrylic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3306235A GB466504A (en) 1935-11-28 1935-11-28 Improvements in or relating to the synthesis of esters of methacrylic acid

Publications (1)

Publication Number Publication Date
GB466504A true GB466504A (en) 1937-05-28

Family

ID=10348037

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3306235A Expired GB466504A (en) 1935-11-28 1935-11-28 Improvements in or relating to the synthesis of esters of methacrylic acid

Country Status (1)

Country Link
GB (1) GB466504A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2571194A (en) * 1948-11-06 1951-10-16 Brothman And Associates A Process for the manufacture of methacrylic acid esters from acetone cyanhydrin
DE1133712B (en) * 1960-02-26 1962-07-26 Hoechst Ag Process for the preparation of ª ‡ -hydroxyisobutyric acid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2571194A (en) * 1948-11-06 1951-10-16 Brothman And Associates A Process for the manufacture of methacrylic acid esters from acetone cyanhydrin
DE1133712B (en) * 1960-02-26 1962-07-26 Hoechst Ag Process for the preparation of ª ‡ -hydroxyisobutyric acid

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