Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Uracil-based compounds, and herbicides comprising same

A compound, uracil technology, applied in the field of novel uracil-based compounds and their preparation, can solve problems such as loss of herbicides, and achieve the effects of highly selective herbicidal effect and excellent herbicidal activity

Active Publication Date: 2014-07-30
FARMHANNONG CO LTD
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, research and development of new herbicides are continuing due to the occurrence of various weeds that still cause damage to agriculture.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Uracil-based compounds, and herbicides comprising same
  • Uracil-based compounds, and herbicides comprising same
  • Uracil-based compounds, and herbicides comprising same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0029] The uracil compound represented by the chemical formula 1 according to the present invention includes agrochemically acceptable salts, racemates, enantiomers or diastereomeric compounds of the compound represented by the chemical formula 1.

[0030] In addition, the uracil-based compound represented by the chemical formula 1 according to the present invention may be used in the form of an agrochemically acceptable salt. The agrochemically acceptable salts may include, for example, salts with metal salts, organic bases, inorganic acids, organic acids, basic or acidic amino acids, and the like. Suitable metal salts may include, for example, alkali metal salts such as sodium salts, potassium salts and the like; alkaline earth metal salts such as calcium salts, magnesium salts, barium salts and the like; aluminum salts and the like. Salts with organic bases may include, for example, with trimethylamine, triethylamine, pyridine, picoline, 2,6-lutidine, ethanolamine, diethano...

preparation example 1

[0114] [Preparation Example 1: Synthesis of 2-chloropropionyl chloride]

[0115] To a solution obtained by dissolving 10.8 g of 2-chloropropionic acid in 0.5 mL of dimethylformamide, 17.8 g of thionyl chloride (SOCl2) chloride was added dropwise at 50° C. for 30 minutes. After stirring at the same temperature for 7 hours, distillation was carried out at 112° C. to obtain 9.4 g of pale yellow oil.

[0116] 1 H NMR (CDCl 3 , 300MHz) δ 4.68 (q, 1H, J=7.0Hz), 1.84 (d, 3H, J=7.0Hz).

preparation example 2

[0117] [Preparation Example 2: Synthesis of 3-(2-chloropropionylamino)propionic acid methyl ester]

[0118] To a suspension in which 2.25 g of β-alanine methyl ester hydrochloride was suspended in 10 mL of methylene chloride was added 1.63 g of triethylamine, followed by stirring for 30 minutes. After adding 1.27 g of pyridine and cooling the reaction mixture to 0° C., 2.04 g of 2-chloropropionyl chloride was dissolved in 10 mL of methylene chloride and added dropwise for 20 minutes. The reaction mixture was stirred at room temperature for 2 hours, washed successively with water, 1N hydrochloric acid, saturated sodium bicarbonate, dehydrated, filtered, and concentrated to give 2.9 g of a yellow oil in 93% yield.

[0119] 1 H NMR (CDCl3 , 300MHz) δ7.15(br s, 1H), 4.41(q, 1H, J=7.0Hz), 3.74(s, 3H), 3.58(q, 2H, J=6.1Hz), 2.59(t, 2H, J=6.0 Hz), 1.74 (d, 3H, J=7.1 Hz).

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a uracil compound, a preparation method of the compound, and a herbicide containing the compound as an active ingredient. R1, R2, R3, R4, R5, X, Y, Z, and W are each as defined in the detailed description of the invention. [Key words] uracil, herbicide, pyrimidinedione.

Description

【Technical field】 [0001] The present invention relates to a novel uracil compound, a preparation method thereof, and a herbicide comprising the same. 【Background technique】 [0002] In general, control of weeds is very important for improving agricultural productivity, and various herbicides have been used in the past. [0003] Triazine-based herbicides such as Atrazine or anilide-based herbicides such as Alachlor or Metolachlor have been used in corn cultivation in the past. On the other hand, conventional herbicides such as paraquat and glyphosate have been used as non-selective herbicides. [0004] However, research and development of new herbicides are continuing due to the occurrence of various weeds that still cause damage to agriculture. [0005] A compound represented by the following chemical formula A is disclosed in Japanese Laid-Open Patent No. 2000-302,764 in relation to an active substance of a herbicide. [0006] [0007] In said formula A, R1 is a hydro...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C07D239/54
CPCA01N43/54C07D239/54A01N41/06
Inventor 高荣宽郑谨会柳在旭禹在春丘桐完金大璜金台埈崔寅永金荣权吴泰铉崔埈赫石美英金庚星郑奉真
Owner FARMHANNONG CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com