GB576087A - Improvements in and relating to the production of 1:5 pentanediol - Google Patents

Improvements in and relating to the production of 1:5 pentanediol

Info

Publication number
GB576087A
GB576087A GB570442A GB570442A GB576087A GB 576087 A GB576087 A GB 576087A GB 570442 A GB570442 A GB 570442A GB 570442 A GB570442 A GB 570442A GB 576087 A GB576087 A GB 576087A
Authority
GB
United Kingdom
Prior art keywords
pentanediol
hydroxyvaleric
aldehyde
water
dihydropyran
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
GB570442A
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 GB570442A priority Critical patent/GB576087A/en
Publication of GB576087A publication Critical patent/GB576087A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
    • C07C31/18—Polyhydroxylic acyclic alcohols
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/46—Dielectric heating

Landscapes

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

Abstract

1 : 5-Pentanediol is prepared by treating d -hydroxyvaleric aldehyde or its isomer 1 : 5-epoxy pentanol-5 with hydrogen at elevated temperatures and/or pressures in the presence of a hydrogenating catalyst. The reaction may be carried out in the liquid phase and in the presence of water. Suitable catalysts are the metals of group VIII or copper which may be supported on an inert carrier. In the examples, hydrogen, d -hydroxyvaleric aldehyde and a nickel on kieselguhr catalyst are reacted together (1) in the absence of water, (2) with water, to give 1 : 5-pentanediol, with some dihydropyran. d -Hydroxyvaleric aldehyde is prepared by hydrating dihydropyran in the presence of a mineral acid.
GB570442A 1942-04-28 1942-04-28 Improvements in and relating to the production of 1:5 pentanediol Expired GB576087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB570442A GB576087A (en) 1942-04-28 1942-04-28 Improvements in and relating to the production of 1:5 pentanediol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB570442A GB576087A (en) 1942-04-28 1942-04-28 Improvements in and relating to the production of 1:5 pentanediol

Publications (1)

Publication Number Publication Date
GB576087A true GB576087A (en) 1946-03-19

Family

ID=9801063

Family Applications (1)

Application Number Title Priority Date Filing Date
GB570442A Expired GB576087A (en) 1942-04-28 1942-04-28 Improvements in and relating to the production of 1:5 pentanediol

Country Status (1)

Country Link
GB (1) GB576087A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5235118A (en) * 1991-07-25 1993-08-10 Eastman Kodak Company Continuous process for the preparation of 2-ethyl-2-(hydroxymethyl)hexanal and 2-butyl-2-ethyl-1, 3-propanediol

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5235118A (en) * 1991-07-25 1993-08-10 Eastman Kodak Company Continuous process for the preparation of 2-ethyl-2-(hydroxymethyl)hexanal and 2-butyl-2-ethyl-1, 3-propanediol

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