GB743683A - Di-pyridyl aliphatic alkylene polyamine poly-acid compounds - Google Patents
Di-pyridyl aliphatic alkylene polyamine poly-acid compoundsInfo
- Publication number
- GB743683A GB743683A GB1413553A GB1413553A GB743683A GB 743683 A GB743683 A GB 743683A GB 1413553 A GB1413553 A GB 1413553A GB 1413553 A GB1413553 A GB 1413553A GB 743683 A GB743683 A GB 743683A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkylene
- ethylene
- carbon atoms
- group
- mols
- 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
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/24—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D213/36—Radicals substituted by singly-bound nitrogen atoms
- C07D213/38—Radicals substituted by singly-bound nitrogen atoms having only hydrogen or hydrocarbon radicals attached to the substituent nitrogen atom
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
Abstract
The invention comprises compounds of formula <FORM:0743683/IV(a)/1> and acid-addition salts thereof, wherein A is an acetic or higher homologue acid residue (e.g. -CH2.COOM or -CH2.CH2.COOM, M being hydrogen, alkali metal, ammonium or substituted ammonium); R is a direct linkage, a methylene group, an ethylidene group or a group comprising a chain of up to 12 carbon atoms, the carbon atoms of such chain being saturated with hydrogen or alkyl radicals containing fewer carbon atoms than said chain; "alkylene" includes cycloalkylene and interposes 2 or 3 carbon atoms between the indicated nitrogen atoms (e.g. ethylene, propylene or trimethylene); and n is a positive integer. The compounds are prepared (1) by carboxymethylation of a - aminopyridine or an a - (aminoalkyl)-pyridine with sodium cyanide and formaldehyde, two mols. of the product being subsequently treated with one mol. of a polyalkylene polyhalide; (2) by reacting two mols. of a -chlorpyridine or an a -(haloalkyl)-pyridine with one mol. of a polyalkylene polyamine N-polycarboxylic acid; and (3) by reacting two mols. of a 2-acylpyridine with one mol. of a polyalkylene polyamine to form a Schiff's base, which is hydrogenated using a promoted nickel catalyst and the product carboxymethylated with sodium cyanide and formaldehyde. The examples describe the preparation of compounds in which (1) n is 1, A is CH2.COOH, "alkylene" is ethylene and R is a direct linkage, a methylene group and an ethylidene group; (2) n is 1, A is CH2.CH2.COOH, "alkylene" is ethylene and R is a methylene group; and (3) n is 2, A is CH2.COOH, "alkylene" is ethylene and R is an ethylidene group. Chelates with copper, cobalt and nickel are also described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1413553A GB743683A (en) | 1953-05-20 | 1953-05-20 | Di-pyridyl aliphatic alkylene polyamine poly-acid compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1413553A GB743683A (en) | 1953-05-20 | 1953-05-20 | Di-pyridyl aliphatic alkylene polyamine poly-acid compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB743683A true GB743683A (en) | 1956-01-18 |
Family
ID=10035634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1413553A Expired GB743683A (en) | 1953-05-20 | 1953-05-20 | Di-pyridyl aliphatic alkylene polyamine poly-acid compounds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB743683A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992010465A1 (en) * | 1990-12-14 | 1992-06-25 | Mallinckrodt Medical, Inc. | Novel preorganized hexadentate ligands useful in radiographic imaging agents |
-
1953
- 1953-05-20 GB GB1413553A patent/GB743683A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992010465A1 (en) * | 1990-12-14 | 1992-06-25 | Mallinckrodt Medical, Inc. | Novel preorganized hexadentate ligands useful in radiographic imaging agents |
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