GB767317A - Piperazine adipate - Google Patents

Piperazine adipate

Info

Publication number
GB767317A
GB767317A GB1591154A GB1591154A GB767317A GB 767317 A GB767317 A GB 767317A GB 1591154 A GB1591154 A GB 1591154A GB 1591154 A GB1591154 A GB 1591154A GB 767317 A GB767317 A GB 767317A
Authority
GB
United Kingdom
Prior art keywords
piperazine
adipate
alcohol
adipic acid
reaction
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
GB1591154A
Inventor
Vladimir Petrow
Bennet Sturgeon
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.)
BDH Chemicals Ltd
Original Assignee
BDH Chemicals 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 BDH Chemicals Ltd filed Critical BDH Chemicals Ltd
Priority to GB1591154A priority Critical patent/GB767317A/en
Publication of GB767317A publication Critical patent/GB767317A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/02—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements
    • C07D295/027—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements containing only one hetero ring

Landscapes

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

Abstract

Piperazine adipate is prepared by reacting piperazine in admixture with substantial amounts of other nitrogenous bases with adipic acid and separating piperazine adipate in relatively pure form from the reaction product by elution with an unsubstituted aliphatic alcohol containing 1 to 5 carbon atoms, the adipates of the other nitrogenous bases being dissolved while piperazine adipate remains undissolved. The reaction between the piperazine containing nitrogenous base mixture and the adipic acid may be carried out in the alcohol and the piperazine adipate thereby precipitated directly therefrom. Alternatively the reaction may be carried out in aqueous medium with subsequent evaporation of the solution to dryness and elution with the alcohol. Alcohols referred to are methanol, ethanol, industrial methylated spirit, n- and iso-propanol and n-butanol, Examples, including regeneration of piperazine from piperazine adipate by treatment of a slurry of the latter in acetone with potassium hydroxide solution, are given. The Provisional Specification refers to the treatment of a piperazine containing fraction with the alcohol and adipic acid in any order and states that the piperazine content of the fraction may vary from below 5 per cent to almost 100 per cent.
GB1591154A 1954-05-28 1954-05-28 Piperazine adipate Expired GB767317A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1591154A GB767317A (en) 1954-05-28 1954-05-28 Piperazine adipate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1591154A GB767317A (en) 1954-05-28 1954-05-28 Piperazine adipate

Publications (1)

Publication Number Publication Date
GB767317A true GB767317A (en) 1957-01-30

Family

ID=10067766

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1591154A Expired GB767317A (en) 1954-05-28 1954-05-28 Piperazine adipate

Country Status (1)

Country Link
GB (1) GB767317A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009156273A1 (en) * 2008-06-23 2009-12-30 Basf Se Absorption medium and method for removing sour gases from fluid streams, in particular from flue gases

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009156273A1 (en) * 2008-06-23 2009-12-30 Basf Se Absorption medium and method for removing sour gases from fluid streams, in particular from flue gases
US8361426B2 (en) 2008-06-23 2013-01-29 Basf Se Absorption medium and method for removing sour gases from fluid streams, in particular from flue gases
AU2009264389B2 (en) * 2008-06-23 2014-05-29 Basf Se Absorption medium and method for removing sour gases from fluid streams, in particular from flue gases

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