JPS57144293A - Beta-phenethylphosphonic ester derivative, its preparation and herbicide containing the same as active constituent - Google Patents
Beta-phenethylphosphonic ester derivative, its preparation and herbicide containing the same as active constituentInfo
- Publication number
- JPS57144293A JPS57144293A JP56030994A JP3099481A JPS57144293A JP S57144293 A JPS57144293 A JP S57144293A JP 56030994 A JP56030994 A JP 56030994A JP 3099481 A JP3099481 A JP 3099481A JP S57144293 A JPS57144293 A JP S57144293A
- Authority
- JP
- Japan
- Prior art keywords
- phenethylphosphonic
- beta
- preparation
- same
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
NEW MATERIAL:A compound of formulaI[R1 is ≥2C lower alkyl; R2 and R3 are H, alkyl, (phenyl)alkenyl; alkynyl, alkylthio, phenylthio or (substituted)aralkyl; however, are not H at the same time; R4 is H or methyl; X is halogen; n is an integer 0W2].
EXAMPLE: O,O,α-Triisopropyl β-phenethylphosphonate.
USE: A selective herbicide, having powerful weeding action on a wide range of weeds by the foliar treatment after the germination with very low phytotoxicity to important crops, e.g. cotton, soybenas, rice plants, etc., and particularly exhibiting improved selectivity for cotton by the foliar treatment.
PROCESS: A β-phenethylphosphonic ester of formula II is reacted with a halide of the formula R5Y[R5 is alkyl, alkynyl or (substituted)aralkyl; Y is halogen]in the presence of a base to give the compound of formulaI(R2 and R3 are R5; or R2 is R5 and R3 is H).
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56030994A JPS57144293A (en) | 1981-03-03 | 1981-03-03 | Beta-phenethylphosphonic ester derivative, its preparation and herbicide containing the same as active constituent |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56030994A JPS57144293A (en) | 1981-03-03 | 1981-03-03 | Beta-phenethylphosphonic ester derivative, its preparation and herbicide containing the same as active constituent |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57144293A true JPS57144293A (en) | 1982-09-06 |
Family
ID=12319148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56030994A Pending JPS57144293A (en) | 1981-03-03 | 1981-03-03 | Beta-phenethylphosphonic ester derivative, its preparation and herbicide containing the same as active constituent |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57144293A (en) |
-
1981
- 1981-03-03 JP JP56030994A patent/JPS57144293A/en active Pending
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