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

Periploca sepium bunge neo-glycoside agricultural insecticidal compound

A compound and the technology of willow willow, applied in the field of pesticides, can solve the problems of food safety threats, excessive pesticide residues, etc., and achieve the effects of low pressure, large yield, and good field control effect

Inactive Publication Date: 2012-09-19
PESTICIDE INST XIBEI AGRI & FORESTRY TECHUNIV
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the long-term and high-frequency application of pesticides, the pests have developed resistance or resistance to the above-mentioned pesticides to varying degrees. To achieve the ideal control effect, the only way to continuously increase the dosage of pesticides is to cause the pesticide residues in agricultural products to exceed the standard, which poses a threat to food safety. serious threat
The present invention provides a plant-derived steroidal glycoside compound, which has the advantages of novel structure and unique mechanism of action. At the same time, there is no compound of this type of structure in the current commercial insecticides

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
  • Periploca sepium bunge neo-glycoside agricultural insecticidal compound
  • Periploca sepium bunge neo-glycoside agricultural insecticidal compound
  • Periploca sepium bunge neo-glycoside agricultural insecticidal compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] compound separation

[0011] Put 500g of the plant root bark and crushed plant sample in a 5L round bottom flask, add 3000mL methanol for reflux extraction for 3 hours, filter the supernatant, then add 3000mL methanol for reflux extraction for 2 hours, filter the supernatant liquid, the combined filtrates were concentrated under reduced pressure to about 100 mL. The concentrate was suspended in 400 mL of water, and then extracted three times with 500 mL of n-butanol, the butanol phases were combined, and concentrated to near dryness under reduced pressure. After the concentrate 60.0g chloroform was dissolved, the sample was mixed with silica gel, transferred to a silica gel column (4.0×100cm), and eluted with sherwood oil / acetone=9 / 1, 8 / 2, 7 / 3 (volume ratio) successively. Rinse 1000mL with each solvent ratio, collect one portion per 100mL, concentrate 6 / 4 of the eluent to dryness, transfer it to a silica gel column (3.0×50cm), and use petroleum ether / acetone=7 / 3, 6 / 4 (...

Embodiment 2

[0013] Preparation of 0.2% Glycoside Emulsion in Water

[0014] Weigh 20.0g of the crude extract containing the compound involved in the present invention (containing the compound ≥ 0.20g involved in the present invention) and dissolve it in 35g xylene, then add non-ionic surfactant Nongru 4005.0g, TX-55.0g, 35g of water, stirred until emulsified, to obtain the water emulsion in which the compound is an active ingredient, wherein the active ingredient content is 0.2%.

Embodiment 3

[0016] Preparation of 0.1% Glycoside microemulsion

[0017] Take by weighing the crude extract 10.0g (compound ≥ 0.10g involved in the present invention) that contains the compound involved in the present invention and be dissolved in 20g methanol, then add anionic surfactant calcium dodecylbenzenesulfonate (DBS-Ca ) 3.0g, 337.0g non-ionic surfactant Ning milk, 60g water, stirred to a transparent homogeneous phase, to obtain the compound as the microemulsion of the active ingredient, wherein the active ingredient content is 0.10%.

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 provides a periploca sepium bunge neo-glycoside compound with agricultural insecticidal activity, belonging to the technical field of pesticides. The compound provided by the invention has the structural formula shown in the specifications, and the IUPAC (International Union of Pure and Applied Chemistry) chemical name thereof is delta<5>-pregnene-3beta,17alpha-dyhydroxyl-,20(S)-oxy-(2-O-acetyl-beta-D-digitalose(1->4)-beta-D-cymarose-(1->4)-beta-D-cymarose-(1->4)-beta-D-cymarose-(1->4)-((1->5)-3,7-dideoxy-4-O-methyl-alpha-D-glucose-2-ketoheptose(2,4)-dyhydroxyl-(1->3)-beta-D-cymarose). The compound provided by the invention has strong stomach toxicity insecticidal activity selectively on cabbage worm, plutella xylostella and beet armyworm, and can be processed into an agricultural insecticidal preparation.

Description

Technical field: [0001] The invention relates to the technical field of pesticides, in particular to the use of a new compound of bark willow new glycosides for preventing and treating cabbage caterpillar, diamondback moth and beet armyworm. technical background: [0002] Lepidoptera insects such as cabbage caterpillar, diamondback moth, and beet armyworm are important pests that threaten the production of cruciferous vegetables such as cabbage and cabbage. Generally, there are 3-4 generations a year, and even more than 10 generations in the southern region, resulting in a 20% reduction in production. % - 30%, severe production reduction can reach more than 60%. The main technical method currently used to control such pests is still chemical control, mainly insecticides such as beta-cyhalothrin, beta-cypermethrin, abamectin, and emamectin. Due to the long-term and high-frequency application of pesticides, the pests have developed resistance or resistance to the above-mentio...

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
IPC IPC(8): C07J7/00A01N45/00A01P7/04
Inventor 师宝君白建军吴文君魏少鹏姬志勤胡兆农
Owner PESTICIDE INST XIBEI AGRI & FORESTRY TECHUNIV
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