GB961065A - Manufacture of new poly-n-diacetic acid imides - Google Patents
Manufacture of new poly-n-diacetic acid imidesInfo
- Publication number
- GB961065A GB961065A GB185262A GB185262A GB961065A GB 961065 A GB961065 A GB 961065A GB 185262 A GB185262 A GB 185262A GB 185262 A GB185262 A GB 185262A GB 961065 A GB961065 A GB 961065A
- Authority
- GB
- United Kingdom
- Prior art keywords
- radical
- carbon atoms
- poly
- symbol
- formula
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
- C07D241/02—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings
- C07D241/06—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having one or two double bonds between ring members or between ring members and non-ring members
- C07D241/08—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having one or two double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms
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)
- Indole Compounds (AREA)
Abstract
Poly-N-diacetic-acid imides of the formula: <FORM:0961065/C1/1> where the symbol X represents an n-valent aliphatic, cycloaliphatic; aromatic or araliphatic radical of which the chains linking the amino-nitrogen atoms consist exclusively of carbon atoms or carbon atoms with the addition, as links, of separate oxygen or sulphur atoms, substituted or unsubstituted imino groups, sulphoxide or sulphone groups and n is an integer of 2 to 4, are prepared by reaction of a poly-N-diacetic-acid of the formula: <FORM:0961065/C1/2> with ammonia in an acid amide of the formula: <FORM:0961065/C1/3> where the symbol R1 represents a hydrogen atom or an aliphatic radical having 1 to 4 carbon atoms and the symbols R2 and R3 each represent an aliphatic radical having 1 to 4 carbon atoms at a temperature of at least 120 DEG C. The symbol X may represent, for example, an alkylene or cycloalkylene radical, or a b ,b 1-diethyl ether, b ,b 1-diethyl-ethylene glycol ether, b ,b 1- diethylthioether or g ,g 1-dipropyl ether, a 4,41-dicyclohexylene or bi-41-cyclohexylalkane radical, a bi-alkyl mono- or poly-amino radical where the amino group may be substituted by an alkyl, carboxyalkyl, carbamylalkyl or hydroxyalkyl group, or a benzylene phenylene or xylylene type radical. The acid amide is preferably dimethyl formamide. The reaction is preferably carried out at 120 DEG to 180 DEG C., the water formed being suitably removed by azeotropic distillation with liquids which are gaseous at the reaction temperature, for example, the hydrocarbons of the benzene series which may be halogenized.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH76561A CH383983A (en) | 1961-01-19 | 1961-01-19 | Process for the preparation of new poly-N-diacetic acid imides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB961065A true GB961065A (en) | 1964-06-17 |
Family
ID=4194644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB185262A Expired GB961065A (en) | 1961-01-19 | 1962-01-18 | Manufacture of new poly-n-diacetic acid imides |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE624685A (en) |
| CH (1) | CH383983A (en) |
| DE (1) | DE1172683B (en) |
| DK (1) | DK104791C (en) |
| GB (1) | GB961065A (en) |
| NL (1) | NL139170B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008061270A1 (en) * | 2006-11-24 | 2008-05-29 | Cyathus Exquirere Pharmaforschungs Gmbh | Novel method for producing 4,4'-(1-methyl-1,2-ethanediyl)-bis-(2,6-piperazinedione) |
-
0
- BE BE624685D patent/BE624685A/xx unknown
-
1961
- 1961-01-19 CH CH76561A patent/CH383983A/en unknown
-
1962
- 1962-01-18 GB GB185262A patent/GB961065A/en not_active Expired
- 1962-01-18 DK DK23362A patent/DK104791C/en active
- 1962-01-18 DE DEG34055A patent/DE1172683B/en active Pending
- 1962-01-18 NL NL273691A patent/NL139170B/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008061270A1 (en) * | 2006-11-24 | 2008-05-29 | Cyathus Exquirere Pharmaforschungs Gmbh | Novel method for producing 4,4'-(1-methyl-1,2-ethanediyl)-bis-(2,6-piperazinedione) |
| CN101563329B (en) * | 2006-11-24 | 2013-03-13 | 西雅图斯精致医药研究有限公司 | Novel method for producing 4,4'-(1-methyl-1,2-ethanediyl)-bis-(2,6-piperazinedione) |
| US8455641B2 (en) | 2006-11-24 | 2013-06-04 | Cyathus Exquirere Pharmaforschungs Gmbh | Method for producing 4,4′-(propane-1,2-diyl)-dipiperazine-2,6-dione |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1172683B (en) | 1964-06-25 |
| CH383983A (en) | 1964-11-15 |
| DK104791C (en) | 1966-07-04 |
| NL139170B (en) | 1973-06-15 |
| BE624685A (en) |
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