GB405173A - Manufacture of substituted malonic acids - Google Patents

Manufacture of substituted malonic acids

Info

Publication number
GB405173A
GB405173A GB16476/33A GB1647633A GB405173A GB 405173 A GB405173 A GB 405173A GB 16476/33 A GB16476/33 A GB 16476/33A GB 1647633 A GB1647633 A GB 1647633A GB 405173 A GB405173 A GB 405173A
Authority
GB
United Kingdom
Prior art keywords
propanol
acid
diethyl
ethyl
substituted malonic
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
GB16476/33A
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie 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
Application filed by Wacker Chemie AG filed Critical Wacker Chemie AG
Publication of GB405173A publication Critical patent/GB405173A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/27—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with oxides of nitrogen or nitrogen-containing mineral acids

Landscapes

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

Abstract

Substituted malonic acids are obtained by oxidizing corresponding compounds having alcohol or aldehyde groups in place of one or both the carboxylic groups of the acid by means of nitric acid or oxides of nitrogen. The oxidation may be effected in presence of sulphuric acid or a vanadium or molybdenum compound, and the nitrogen oxides may be regenerated in the reaction vessel by introducing oxygen. In the examples: (1) 2-methyl-2-ethyl-propanol-1-one-3 is added gradually at 30--40 DEG C. to nitric acid containing nitrogen oxides, and oxygen is introduced; (2) 2-2-diethyl-propanol-1-one-3 is added to nitric acid of the same composition but at 15--20 DEG C.; (3) 2 - 2 - diethyl propanol - 1 - one - 3 is added gradually at 40 DEG C. to a mixture of nitric and sulphuric acids containing ammonium vanadate and traces of nitrogen oxides, and oxygen is introduced. In a similar manner substituted malonic acids may be obtained from 2-ethyl-2-butyl - propanol - 1 - one - 3, 2 - methyl - 2 - ethyl - propane - diol - (1 : 3), and 2 - 2 - diethyl-propanol-1-carboxylic acid-(3).
GB16476/33A 1932-06-08 1933-06-08 Manufacture of substituted malonic acids Expired GB405173A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE405173X 1932-06-08

Publications (1)

Publication Number Publication Date
GB405173A true GB405173A (en) 1934-02-01

Family

ID=6421888

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16476/33A Expired GB405173A (en) 1932-06-08 1933-06-08 Manufacture of substituted malonic acids

Country Status (1)

Country Link
GB (1) GB405173A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437410A (en) * 1943-11-20 1948-03-09 Distillers Co Yeast Ltd Manufacture of hydroxy acids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437410A (en) * 1943-11-20 1948-03-09 Distillers Co Yeast Ltd Manufacture of hydroxy acids

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