GB1371155A - Process for the manufacture of 6-methyl-uracil - Google Patents
Process for the manufacture of 6-methyl-uracilInfo
- Publication number
- GB1371155A GB1371155A GB3517072A GB3517072A GB1371155A GB 1371155 A GB1371155 A GB 1371155A GB 3517072 A GB3517072 A GB 3517072A GB 3517072 A GB3517072 A GB 3517072A GB 1371155 A GB1371155 A GB 1371155A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methyluracil
- carried out
- temperature
- uracil
- methyl
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
1371155 6-Methyluracil WACKER CHEMIE GmbH 27 July 1972 [3 Aug 1971] 35170/72 Heading C2C 6-Methyluracil is prepared by reacting urea with diketene in an organic solvent, optionally with the addition of acetic anhydride, in the presence of, as catalyst, a compound of the formula wherein R is a hydrogen atom or a (C 1 -C 4 ) alkyl group, and X is CH or a nitrogen atom, and/or a sodium salt of a (C 1 -C 4 ) carboxylic acid in an amount of from 0À1 to 10 grams per mol of one of the reactants, the ureide formation being carried out at a temperature of from 10 to 40‹ C. and the cyclization subsequently being carried out at a temperature of from 80 to 150‹ C.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712138802 DE2138802C3 (en) | 1971-08-03 | Process for the preparation of 6-methyluracil |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1371155A true GB1371155A (en) | 1974-10-23 |
Family
ID=5815659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3517072A Expired GB1371155A (en) | 1971-08-03 | 1972-07-27 | Process for the manufacture of 6-methyl-uracil |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE787134A (en) |
CH (1) | CH575400A5 (en) |
FR (1) | FR2149839A5 (en) |
GB (1) | GB1371155A (en) |
IT (1) | IT961813B (en) |
NL (1) | NL7210378A (en) |
-
0
- BE BE787134D patent/BE787134A/en unknown
-
1972
- 1972-07-27 GB GB3517072A patent/GB1371155A/en not_active Expired
- 1972-07-27 NL NL7210378A patent/NL7210378A/xx not_active Application Discontinuation
- 1972-08-01 IT IT5190372A patent/IT961813B/en active
- 1972-08-02 CH CH1142272A patent/CH575400A5/xx not_active IP Right Cessation
- 1972-08-02 FR FR7227841A patent/FR2149839A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE787134A (en) | 1973-02-05 |
FR2149839A5 (en) | 1973-03-30 |
DE2138802B2 (en) | 1975-11-20 |
IT961813B (en) | 1973-12-10 |
CH575400A5 (en) | 1976-05-14 |
DE2138802A1 (en) | 1973-02-22 |
NL7210378A (en) | 1973-02-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |