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GB868573A - A process for the manufacture of pivalic acid - Google Patents

A process for the manufacture of pivalic acid

Info

Publication number
GB868573A
GB868573A GB1031959A GB1031959A GB868573A GB 868573 A GB868573 A GB 868573A GB 1031959 A GB1031959 A GB 1031959A GB 1031959 A GB1031959 A GB 1031959A GB 868573 A GB868573 A GB 868573A
Authority
GB
United Kingdom
Prior art keywords
acid
sulphuric
isobutanol
manufacture
pivalic 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
GB1031959A
Inventor
Alan Sweeney
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB1031959A priority Critical patent/GB868573A/en
Priority to CH325260A priority patent/CH382133A/en
Publication of GB868573A publication Critical patent/GB868573A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C53/00—Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen
    • C07C53/126—Acids containing more than four carbon atoms
    • C07C53/128—Acids containing more than four carbon atoms the carboxylic group being bound to a carbon atom bound to at least two other carbon atoms, e.g. neo-acids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
    • C07C51/353—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by isomerisation; by change of size of the carbon skeleton

Landscapes

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

Abstract

Pivalic acid is prepared by reacting isobutanol with formic acid in the presence of a substantially anhydrous strong acid catalyst. Sulphuric and hydrofluoric acids or a mixture of boron trifluoride with sulphuric acid are used and the formic acid and isobutanol are used in molar ratios of 2:1 to 1:2, preferably equimolar. The reactant mixture is added to the catalyst preferably over a period, with mixing and at a temperature between -10 DEG C. and 110 DEG C. and at a pressure of 15 lbs./sq. in. above atmospheric, and the acid is extracted and purified. The acid may be an intermediate in the preparation of 1:11-dineopentyl-ferrocene. Specification 819,108 is referred to.
GB1031959A 1959-03-25 1959-03-25 A process for the manufacture of pivalic acid Expired GB868573A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1031959A GB868573A (en) 1959-03-25 1959-03-25 A process for the manufacture of pivalic acid
CH325260A CH382133A (en) 1959-03-25 1960-03-23 Process for the production of pivalic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1031959A GB868573A (en) 1959-03-25 1959-03-25 A process for the manufacture of pivalic acid

Publications (1)

Publication Number Publication Date
GB868573A true GB868573A (en) 1961-05-17

Family

ID=9965687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1031959A Expired GB868573A (en) 1959-03-25 1959-03-25 A process for the manufacture of pivalic acid

Country Status (2)

Country Link
CH (1) CH382133A (en)
GB (1) GB868573A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140419A (en) * 1983-05-27 1984-11-28 Lilly Co Eli Synthesis of 2-ethyl-2-methyl-butanoic acid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140419A (en) * 1983-05-27 1984-11-28 Lilly Co Eli Synthesis of 2-ethyl-2-methyl-butanoic acid

Also Published As

Publication number Publication date
CH382133A (en) 1964-09-30

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