JPS55108858A - Novel dihydrouracil derivative and herbicide - Google Patents
Novel dihydrouracil derivative and herbicideInfo
- Publication number
- JPS55108858A JPS55108858A JP1579579A JP1579579A JPS55108858A JP S55108858 A JPS55108858 A JP S55108858A JP 1579579 A JP1579579 A JP 1579579A JP 1579579 A JP1579579 A JP 1579579A JP S55108858 A JPS55108858 A JP S55108858A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- dihydrouracil
- substituted
- acid
- lower alkyl
- 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.)
- Granted
Links
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
NEW MATERIAL:An N1,N3-disubstituted dihydrouracil compound of formula I [one of A and B is substituted phenyl or formula III (Y is lower alkyl, halogen, etc.; m is an integer 1W3, however, Y may be the same or different when m is ≥2); the other is alkyl, aryl, etc.; R1, R2 and R3 are H or lower alkyl; X is O or S].
EXAMPLE: 1-(4-Chlorophenyl)-3-methyl-dihydrouracil.
USE: Herbicides usable for grass crops, particularly selective one against broadleaf weeds in barley crop areas.
PROCESS: An N-substituted carbamoyl-N-substituted-β-alanine of formula II (Z is OH or reactive residue) or its reactive derivative at the carboxylic acid is subjected to ring closure through dehydration to give the objective compound of formula I. If Z is OH, the reaction is carried out in the presence of an acid catalyst, e.g. acetic or hydrochloric acid, or a dehydrating agent, e.g. glacial acetic acid or carbodiimide.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1579579A JPS55108858A (en) | 1979-02-14 | 1979-02-14 | Novel dihydrouracil derivative and herbicide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1579579A JPS55108858A (en) | 1979-02-14 | 1979-02-14 | Novel dihydrouracil derivative and herbicide |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55108858A true JPS55108858A (en) | 1980-08-21 |
JPS6111948B2 JPS6111948B2 (en) | 1986-04-05 |
Family
ID=11898763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1579579A Granted JPS55108858A (en) | 1979-02-14 | 1979-02-14 | Novel dihydrouracil derivative and herbicide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55108858A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4588729A (en) * | 1984-05-16 | 1986-05-13 | Kyowa Hakko Kogyo Co., Ltd. | Treating convulsions with dihydrouracil derivatives |
WO1996016043A1 (en) * | 1994-11-17 | 1996-05-30 | Bayer Aktiengesellschaft | Substituted diazacyclohexane di(thi)ons having a herbicidal effect |
US5807864A (en) * | 1996-03-07 | 1998-09-15 | American Home Products Corporation | 2-thioxo-tetrahydropyrimidin-4-one derivatives |
-
1979
- 1979-02-14 JP JP1579579A patent/JPS55108858A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4588729A (en) * | 1984-05-16 | 1986-05-13 | Kyowa Hakko Kogyo Co., Ltd. | Treating convulsions with dihydrouracil derivatives |
WO1996016043A1 (en) * | 1994-11-17 | 1996-05-30 | Bayer Aktiengesellschaft | Substituted diazacyclohexane di(thi)ons having a herbicidal effect |
US5807864A (en) * | 1996-03-07 | 1998-09-15 | American Home Products Corporation | 2-thioxo-tetrahydropyrimidin-4-one derivatives |
Also Published As
Publication number | Publication date |
---|---|
JPS6111948B2 (en) | 1986-04-05 |
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