JPS56161363A - Urea derivative, its preparation and selective herbicide consisting of the same - Google Patents
Urea derivative, its preparation and selective herbicide consisting of the sameInfo
- Publication number
- JPS56161363A JPS56161363A JP6403880A JP6403880A JPS56161363A JP S56161363 A JPS56161363 A JP S56161363A JP 6403880 A JP6403880 A JP 6403880A JP 6403880 A JP6403880 A JP 6403880A JP S56161363 A JPS56161363 A JP S56161363A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- urea derivative
- methyl
- selective herbicide
- preparation
- 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
Abstract
NEW MATERIAL:A urea derivative expressed by formula I (X is halogen, alkyl or trifluoromethyl; n is an integer 0W3; R is methyl or methoxy).
EXAMPLE: N'-4-[ 4-( 3-Methyl-4-chlorophenoxy )2-butynyloxy ]phenyl-N-methyl-N- methoxyurea.
USE: A selective herbicide having a high safety for crops and high harbicidal activity against weeds.
PROCESS: A butynyl halide derivative expressed by formula II (Y is halogen) is reacted with a urea derivative expressed by formula III in a solvent, e.g. benzene or methanol, in the presence of an acid acceptor, e.g. pyridine or caustic soda, under cooling or heating for 1W8hr to give the compound expressed by formula I.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6403880A JPS56161363A (en) | 1980-05-16 | 1980-05-16 | Urea derivative, its preparation and selective herbicide consisting of the same |
US06/247,711 US4358309A (en) | 1980-04-17 | 1981-03-26 | Urea derivatives and highly selective herbicidal compositions containing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6403880A JPS56161363A (en) | 1980-05-16 | 1980-05-16 | Urea derivative, its preparation and selective herbicide consisting of the same |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56161363A true JPS56161363A (en) | 1981-12-11 |
JPS6261027B2 JPS6261027B2 (en) | 1987-12-18 |
Family
ID=13246539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6403880A Granted JPS56161363A (en) | 1980-04-17 | 1980-05-16 | Urea derivative, its preparation and selective herbicide consisting of the same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56161363A (en) |
-
1980
- 1980-05-16 JP JP6403880A patent/JPS56161363A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6261027B2 (en) | 1987-12-18 |
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