ES413229A1 - Process for the production of rho- and my-phenylenediamine - Google Patents
Process for the production of rho- and my-phenylenediamineInfo
- Publication number
- ES413229A1 ES413229A1 ES413229A ES413229A ES413229A1 ES 413229 A1 ES413229 A1 ES 413229A1 ES 413229 A ES413229 A ES 413229A ES 413229 A ES413229 A ES 413229A ES 413229 A1 ES413229 A1 ES 413229A1
- Authority
- ES
- Spain
- Prior art keywords
- phenylenediamines
- radicals
- reacted
- represent
- general 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polyamides (AREA)
- Catalysts (AREA)
Abstract
Procedure for the preparation of unsubstituted and substituted para-phenylenediamines and meta-phenylenediamines of the general formula **(See formula)** in which on the one hand X, X', X''and X''' and on the other hand A, B, C and D have the same or different meanings, and the radicals X, X', X''and X''' represent a chemical bond or lower alcohol radical and A, B, C and D represent a hydrogen or halogen atom, a lower alcohol radical, an aromatic or heterocyclic radical or a nitro, sulfonic acid, sulfonate, hydroxy group, alkoxy, cyano, amino, monoalkoxylamino or monoarylamino, dialcohilamino, phosphonic acid, phosphonate, acyl or carboxylate, characterized in that suitably substituted terephthalic or isophthalic acids of the general formula **(See formula)** in which the radicals X, X', X''and X''', A, B, C and D have the meanings indicated above, they are reacted with a divalent or trivalent alcohol or with a bisphenol or with mixtures of the themselves in the presence of known catalysts for this, to form a low molecular weight oligomeric polymerization product, in a second stage the product obtained is reacted with ammonia, which contains up to 15% by weight of water, to form dicarboxylic acid diamide, and in a third step the resulting dicarboxylic acid diamide is subjected to Hofmann degradation. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722216028 DE2216028C3 (en) | 1972-04-01 | 1972-04-01 | Process for the preparation of unsubstituted and substituted p- and m-phenylenediamines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES413229A1 true ES413229A1 (en) | 1976-01-01 |
Family
ID=5840878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES413229A Expired ES413229A1 (en) | 1972-04-01 | 1973-03-31 | Process for the production of rho- and my-phenylenediamine |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5754500B2 (en) |
| AT (1) | AT321887B (en) |
| BE (1) | BE797562A (en) |
| CA (1) | CA1010896A (en) |
| CH (1) | CH590203A5 (en) |
| DD (1) | DD107437A5 (en) |
| DE (1) | DE2216028C3 (en) |
| ES (1) | ES413229A1 (en) |
| FR (1) | FR2178975B1 (en) |
| GB (1) | GB1399407A (en) |
| IT (1) | IT988135B (en) |
| NL (1) | NL7304532A (en) |
| SU (1) | SU495824A3 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4254272A (en) * | 1979-02-21 | 1981-03-03 | The Goodyear Tire & Rubber Company | Aromatic diamines and polyurethanes cured thereby |
| DE3126435A1 (en) * | 1981-07-04 | 1983-01-20 | Basf Ag, 6700 Ludwigshafen | METHOD FOR THE PRODUCTION OF CELL-MADE POLYURETHANE-POLYURANE MOLDED BODIES, IF ANY, AND ALKYL-SUBSTITUTED PHENYLENE DIAMONIES THEREFOR |
| DE3309913A1 (en) * | 1983-03-19 | 1984-09-27 | Henkel KGaA, 4000 Düsseldorf | NEW 2,4-DIAMINOBENZOL DERIVATIVES AS A COUPLER FOR OXIDATION HAIR COLORING AGENTS |
| CN102276376B (en) * | 2010-06-13 | 2013-08-28 | 华东理工大学 | Preparation method of axial chiral diamine derivative |
| RU2449983C1 (en) * | 2010-12-23 | 2012-05-10 | Открытое акционерное общество "Каустик" (ОАО "Каустик") | METHOD OF PRODUCING n-PHENYLENEDIAMINE |
| US11814360B2 (en) | 2017-10-05 | 2023-11-14 | Novomer, Inc. | Isocyanates, derivatives, and processes for producing the same |
| CN111018720B (en) * | 2019-12-16 | 2021-01-22 | 上海交通大学 | Method for preparing m-phenylenediamine |
-
1972
- 1972-04-01 DE DE19722216028 patent/DE2216028C3/en not_active Expired
-
1973
- 1973-03-13 IT IT4877773A patent/IT988135B/en active
- 1973-03-28 CA CA167,378A patent/CA1010896A/en not_active Expired
- 1973-03-29 DD DD16981973A patent/DD107437A5/xx unknown
- 1973-03-30 SU SU1899019A patent/SU495824A3/en active
- 1973-03-30 BE BE129465A patent/BE797562A/en not_active IP Right Cessation
- 1973-03-30 FR FR7311668A patent/FR2178975B1/fr not_active Expired
- 1973-03-30 AT AT282373A patent/AT321887B/en not_active IP Right Cessation
- 1973-03-30 GB GB1544073A patent/GB1399407A/en not_active Expired
- 1973-03-30 CH CH459873A patent/CH590203A5/xx not_active IP Right Cessation
- 1973-03-31 NL NL7304532A patent/NL7304532A/xx not_active Application Discontinuation
- 1973-03-31 ES ES413229A patent/ES413229A1/en not_active Expired
- 1973-04-02 JP JP3772173A patent/JPS5754500B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH590203A5 (en) | 1977-07-29 |
| JPS4992031A (en) | 1974-09-03 |
| NL7304532A (en) | 1973-10-03 |
| SU495824A3 (en) | 1975-12-15 |
| DD107437A5 (en) | 1974-08-05 |
| DE2216028A1 (en) | 1973-10-11 |
| AT321887B (en) | 1975-04-25 |
| DE2216028B2 (en) | 1978-11-02 |
| FR2178975A1 (en) | 1973-11-16 |
| DE2216028C3 (en) | 1979-06-28 |
| BE797562A (en) | 1973-07-16 |
| IT988135B (en) | 1975-04-10 |
| JPS5754500B2 (en) | 1982-11-18 |
| GB1399407A (en) | 1975-07-02 |
| CA1010896A (en) | 1977-05-24 |
| FR2178975B1 (en) | 1978-03-10 |
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