GB753222A - Production of pentadecanedioic acid - Google Patents

Production of pentadecanedioic acid

Info

Publication number
GB753222A
GB753222A GB9049/53A GB904953A GB753222A GB 753222 A GB753222 A GB 753222A GB 9049/53 A GB9049/53 A GB 9049/53A GB 904953 A GB904953 A GB 904953A GB 753222 A GB753222 A GB 753222A
Authority
GB
United Kingdom
Prior art keywords
acid
alkali metal
lead tetraacetate
aldehyde
pentadecanedioic
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
GB9049/53A
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.)
National Research Council of Canada
Original Assignee
National Research Council of Canada
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 National Research Council of Canada filed Critical National Research Council of Canada
Publication of GB753222A publication Critical patent/GB753222A/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
    • C07C51/285—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with peroxy-compounds

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

A method of producing pentadecanedioic acid and its alkali metal salts comprises treating an alkyl ester of 15, 16-dihydroxyhexadecanoic acid containing up to four carbon atoms in the alkyl group in acetic acid solution with lead tetraacetate, trilead tetraoxide or sodium bismuthate as oxidizing agent at a temperature of about 20 to about 65 DEG C. to form an aldehyde and heating the aldehyde to not more than 65 DEG C. with an aqueous alkaline solution of hydrogen peroxide and alkali metal hydroxide. The free acid is obtained by decomposition of the alkali metal salt with a strong acid. In examples: pentadecanedioic acid is obtained by oxidizing the methyl ester of 15, 16-dihydroxyhexadecanoic acid in acetic acid with lead tetraacetate, extracting methyl aldehydopentadecanoate from the reaction product, warming the former with hydrogen peroxide and sodium peroxide in water and acidifying the product with hydrochloric, sulphuric or nitric acids (1) and (2); in a similar process red lead is employed instead of lead tetraacetate (3). Specification 738,420 is referred to.
GB9049/53A 1952-04-09 1953-04-01 Production of pentadecanedioic acid Expired GB753222A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US753222XA 1952-04-09 1952-04-09

Publications (1)

Publication Number Publication Date
GB753222A true GB753222A (en) 1956-07-18

Family

ID=22124956

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9049/53A Expired GB753222A (en) 1952-04-09 1953-04-01 Production of pentadecanedioic acid

Country Status (1)

Country Link
GB (1) GB753222A (en)

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