GB966544A - Manufacture of pimelic acid - Google Patents

Manufacture of pimelic acid

Info

Publication number
GB966544A
GB966544A GB3818460A GB3818460A GB966544A GB 966544 A GB966544 A GB 966544A GB 3818460 A GB3818460 A GB 3818460A GB 3818460 A GB3818460 A GB 3818460A GB 966544 A GB966544 A GB 966544A
Authority
GB
United Kingdom
Prior art keywords
acid
alkali metal
carboxylic acid
metal hydroxide
alpha
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
GB3818460A
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.)
Standard Oil Co
Original Assignee
Standard Oil 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 Standard Oil Co filed Critical Standard Oil Co
Publication of GB966544A publication Critical patent/GB966544A/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
    • C07C51/295—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with inorganic bases, e.g. by alkali fusion

Landscapes

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

Abstract

Pimelic acid is prepared either by reacting a mono-chlorocyclohexane carboxylic acid with aqueous alkali metal hydroxide between 250 DEG and 450 DEG C. and then acidifying the salt thus obtained to liberate the free acid or by dehydro-halogenating alpha-chlorocyclohexanecarboxylic acid with an alkali metal hydroxide at 0-110 DEG C. to obtain an alkali metal 1-cyclohexene-1-carboxylate, reacting this product with aqueous alkali metal hydroxide between 250-450 DEG C. and then acidifying the salt to liberate the free acid. The mono-chlorocyclohexane carboxylic acid is preferably alpha-chlorocyclohexane carboxylic acid. This alpha acid may be prepared by chlorinating cyclohexane carboxylic acid with sufficient chlorinating agent to monochlorinate 20% of the acid in a non-aqueous phase from 0-150 DEG C. with a chloride, oxyhalide, oxide or oxygen acid of phosphorus, antimony or arsenic as catalyst. Specified chlorinating agents are chlorine, sulphuryl chloride, phosphorus pentachloride, N-chlorosuccinimide, N-chlorourea and dichlorohydantoin.
GB3818460A 1959-11-18 1960-11-07 Manufacture of pimelic acid Expired GB966544A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85371259A 1959-11-18 1959-11-18

Publications (1)

Publication Number Publication Date
GB966544A true GB966544A (en) 1964-08-12

Family

ID=25316714

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3818460A Expired GB966544A (en) 1959-11-18 1960-11-07 Manufacture of pimelic acid

Country Status (2)

Country Link
GB (1) GB966544A (en)
NL (1) NL257661A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102675088A (en) * 2012-05-28 2012-09-19 温州市工业科学研究院 Preparation method of alpha-hydroxy-cyclohexanecarboxylic acid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102675088A (en) * 2012-05-28 2012-09-19 温州市工业科学研究院 Preparation method of alpha-hydroxy-cyclohexanecarboxylic acid

Also Published As

Publication number Publication date
NL257661A (en)

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