FR2398064A1 - Nouveau procede de preparation de la 5,6-diamino-uracile a partir de la 5-nitroso-6-amino-uracile - Google Patents
Nouveau procede de preparation de la 5,6-diamino-uracile a partir de la 5-nitroso-6-amino-uracileInfo
- Publication number
- FR2398064A1 FR2398064A1 FR7821547A FR7821547A FR2398064A1 FR 2398064 A1 FR2398064 A1 FR 2398064A1 FR 7821547 A FR7821547 A FR 7821547A FR 7821547 A FR7821547 A FR 7821547A FR 2398064 A1 FR2398064 A1 FR 2398064A1
- Authority
- FR
- France
- Prior art keywords
- uracil
- nitroso
- diamino
- amino
- new process
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
- C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
- C07D239/52—Two oxygen atoms
- C07D239/54—Two oxygen atoms as doubly bound oxygen atoms or as unsubstituted hydroxy radicals
- C07D239/545—Two oxygen atoms as doubly bound oxygen atoms or as unsubstituted hydroxy radicals with other hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, directly attached to ring carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
L'invention a pour objet un nouveau procédé de préparation de la 5,6-diamino-uracile à partir de la 5-nitroso-6-amino-uracile. Selon ce procédé on hydrogène catalytiquement le groupe nitroso de Ia 5-nitroso-6-amino-uracile en utilisant, comme milieu réactionnel, une base minérale. La 5,6-diamino-uracile est ainsi obtenue avec une pureté et un rendement élevés.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH897877A CH629788A5 (de) | 1977-07-20 | 1977-07-20 | Verfahren zur herstellung von 5,6-diaminouracil. |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2398064A1 true FR2398064A1 (fr) | 1979-02-16 |
Family
ID=4346962
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7821547A Withdrawn FR2398064A1 (fr) | 1977-07-20 | 1978-07-20 | Nouveau procede de preparation de la 5,6-diamino-uracile a partir de la 5-nitroso-6-amino-uracile |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH629788A5 (fr) |
DE (1) | DE2831037A1 (fr) |
FR (1) | FR2398064A1 (fr) |
GB (1) | GB2001310B (fr) |
IT (1) | IT7850343A0 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8929208D0 (en) * | 1989-12-27 | 1990-02-28 | Almirall Lab | New xanthine derivatives |
DE4311538C1 (de) * | 1993-04-07 | 1994-10-06 | Boehringer Ingelheim Kg | Verfahren zur Herstellung von 1,3-Dimethyl-4,5-diaminouracil |
CN101003512B (zh) * | 2007-01-22 | 2011-03-16 | 上海化学试剂研究所 | 6-甲氨基尿嘧啶的制备方法 |
CN104003941B (zh) * | 2014-06-13 | 2016-05-04 | 石药集团新诺威制药股份有限公司 | 一种咖啡因中间体n,n-1,3-二甲基-4,5-二氨基脲嗪的制备方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2646432A (en) * | 1947-01-13 | 1953-07-21 | Mallinckrodt Chemical Works | Method of preparing 2, 6-diketopurines |
-
1977
- 1977-07-20 CH CH897877A patent/CH629788A5/de not_active IP Right Cessation
-
1978
- 1978-06-27 GB GB787827985A patent/GB2001310B/en not_active Expired
- 1978-07-14 DE DE19782831037 patent/DE2831037A1/de not_active Withdrawn
- 1978-07-18 IT IT7850343A patent/IT7850343A0/it unknown
- 1978-07-20 FR FR7821547A patent/FR2398064A1/fr not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2646432A (en) * | 1947-01-13 | 1953-07-21 | Mallinckrodt Chemical Works | Method of preparing 2, 6-diketopurines |
Also Published As
Publication number | Publication date |
---|---|
DE2831037A1 (de) | 1979-02-08 |
GB2001310B (en) | 1982-01-27 |
IT7850343A0 (it) | 1978-07-18 |
CH629788A5 (de) | 1982-05-14 |
GB2001310A (en) | 1979-01-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |