GB816225A - ª‰-hydroxybutyric acid para-phenetidide and a process for its manufacture - Google Patents

ª‰-hydroxybutyric acid para-phenetidide and a process for its manufacture

Info

Publication number
GB816225A
GB816225A GB4477/56A GB447756A GB816225A GB 816225 A GB816225 A GB 816225A GB 4477/56 A GB4477/56 A GB 4477/56A GB 447756 A GB447756 A GB 447756A GB 816225 A GB816225 A GB 816225A
Authority
GB
United Kingdom
Prior art keywords
reduction
phenetidide
hydrogenation
acid para
hydroxybutyric 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
GB4477/56A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst 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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB816225A publication Critical patent/GB816225A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C233/00—Carboxylic acid amides
    • C07C233/01—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C233/16—Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by singly-bound oxygen atoms

Landscapes

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

Abstract

The invention comprises b -hydroxybutyric acid para-phenetidide and its preparation by reduction of acetoacetic acid para-phenetidide. Reduction methods referred to include catalytic hydrogenation in presence of a metal of the eighth periodic group, preferably nickel, reduction with nascent hydrogen from aluminium amalgam and alcohol, alkali metals and alcohols or zinc and glacial acetic acid, electrolytic reduction and reduction with lithium aluminium hydride or sodium borohydride. In examples the reduction is performed (1) by hydrogenation at 80-85 DEG C. with a nickel catalyst supported on kieselguhr, in methanol; (2) by hydrogenation at 70 DEG C. with a Raney nickel catalyst, in methanol; and (3) with aluminium amalgam, by heating in ethanol.
GB4477/56A 1955-02-21 1956-02-13 ª‰-hydroxybutyric acid para-phenetidide and a process for its manufacture Expired GB816225A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE816225X 1955-02-21

Publications (1)

Publication Number Publication Date
GB816225A true GB816225A (en) 1959-07-08

Family

ID=6734938

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4477/56A Expired GB816225A (en) 1955-02-21 1956-02-13 ª‰-hydroxybutyric acid para-phenetidide and a process for its manufacture

Country Status (1)

Country Link
GB (1) GB816225A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045043A (en) * 1958-08-30 1962-07-17 Hoechst Ag New gamma-hydroxy-carboxylic acid amides and process for their manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3045043A (en) * 1958-08-30 1962-07-17 Hoechst Ag New gamma-hydroxy-carboxylic acid amides and process for their manufacture

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