GB1225875A - - Google Patents

Info

Publication number
GB1225875A
GB1225875A GB1225875DA GB1225875A GB 1225875 A GB1225875 A GB 1225875A GB 1225875D A GB1225875D A GB 1225875DA GB 1225875 A GB1225875 A GB 1225875A
Authority
GB
United Kingdom
Prior art keywords
radical
hydrogen atom
ethanolamine
diethanolamine
july
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
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
Priority claimed from DE19671670251 external-priority patent/DE1670251A1/en
Application filed filed Critical
Publication of GB1225875A publication Critical patent/GB1225875A/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
    • C07D295/023—Preparation; Separation; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

1,225,875. Piperazines. BADISCHE ANILIN- & SODA-FABRIK A.G. 26 July, 1968 [29 July, 1967], No. 35781/68. Heading C2C. A piperazine is prepared by reacting an ethanolamine, a diethanolamine or a glycol having the general formula in which either R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> each denote a hydrogen atom or an alkyl, cycloalkyl or phenyl radical or R<SP>1</SP> and R<SP>2</SP> together with the carbon atoms to which they are attached form a 5- to 12-membered cycloaliphatic ring, and X denotes a hydroxyl group or the radical in which H is a hydrogen atom or an alkyl radical and R<SP>5</SP> is a hydrogen atom or the radical in which R<SP>1</SP>, R<SP>2</SP>, and R<SP>3</SP> are as defined above, with ammonia or a primary amine in the presence of hydrogen and a hydrogenation catalyst containing cobalt and/or nickel and an inorganic pyroacid, polyacid or a salt thereof at elevated temperature and superatmospheric pressure in the liquid phase. Suitable starting materials of the formula given above are ethylene glycol, propylene glycol, ethanolamine, N - methylethanolamine, N - decylethanolamine, isopropanolamine, cyclohexanolamine - (1,2), phenylethanolamine, isobutanolamine - (1,2), diethanolamine and diisopropanolamine. Suitable primary amines are methylamine, ethylamine, butylamine, stearylamine, palmitylamine, cyclohexylamine, cyclooctylamine, cyclododecylamine, benzylamine and # - phenylethylamine.
GB1225875D 1967-07-29 1968-07-26 Expired GB1225875A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671670251 DE1670251A1 (en) 1967-07-29 1967-07-29 Process for the preparation of piperazines

Publications (1)

Publication Number Publication Date
GB1225875A true GB1225875A (en) 1971-03-24

Family

ID=5686294

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1225875D Expired GB1225875A (en) 1967-07-29 1968-07-26

Country Status (2)

Country Link
FR (1) FR1575059A (en)
GB (1) GB1225875A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101906084A (en) * 2010-08-12 2010-12-08 烟台万华聚氨酯股份有限公司 Preparation method of piperazine and own derivatives

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4008322A1 (en) * 1990-03-15 1991-09-19 Basf Ag METHOD FOR PRODUCING N-ARYL-SUBSTITUTED 2-AMINOALKYL-2-HYDROXYALKYLAMINES AND N-ARYL-SUBSTITUTED PIPERAZINES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101906084A (en) * 2010-08-12 2010-12-08 烟台万华聚氨酯股份有限公司 Preparation method of piperazine and own derivatives
CN101906084B (en) * 2010-08-12 2013-04-10 烟台万华聚氨酯股份有限公司 Preparation method of piperazine and own derivatives

Also Published As

Publication number Publication date
FR1575059A (en) 1969-07-18

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees