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Method for preparing fenbutatinoxide pyridaben missible oil

A technology of pyridaben EC and benbutin, which can be applied in the directions of botanical equipment and methods, acaricides, animal repellents, etc., and can solve problems such as inability to meet market demands.

Inactive Publication Date: 2008-08-06
北京绿色农华作物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the above-mentioned old varieties can no longer meet the market demand.

Method used

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  • Method for preparing fenbutatinoxide pyridaben missible oil
  • Method for preparing fenbutatinoxide pyridaben missible oil

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Experimental program
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Embodiment Construction

[0005] 1. Selection of active ingredient content

[0006] According to the solubility of the original drug in the organic solvent, the mass fraction of the original phenbutyltin drug is selected to be ≥ 5.0%, and the mass fraction of the pyridaben original drug is ≥ 5.0%.

[0007] a) Phentermine

[0008] ISO common name: fenbutatin oxide

[0009] CIPAC number code: 359

[0010] CA registration number: 20156-08-6

[0011] Chemical name: Bis[tris(2-methyl-2-phenylpropyl)tin] oxide

[0012] Structural formula:

[0013]

[0014] Experimental formula: C 60 h 78 OSn 2

[0015] Relative molecular mass (according to the international relative atomic mass in 2003): 1052.68

[0016] Biological activity: insecticidal

[0017] Melting point: (138~139.5)℃

[0018] Vapor pressure (25°C): 6.67×10 -6 Pa

[0019] Solubility (g / L, 23°C): water 5×10 -6 , Acetone 6, Dichloromethane 380, Benzene 140.

[0020] Stability: Stable under normal storage conditions.

[0021] b) Pyridab...

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Abstract

Presently, most of acaricides in China and abroad are old products such as dicofol of diphenylcarbinol, propargite of sulfurous esters and isocarbophos of organic phosphorous. Most of the old products confront with high resistance due to being used for a long period and the old products are effective only by using in a large dosage; furthermore, the residence time of the old products is long and residue of dicofol is found in crops even one year after the dicofol is applied; isocarbophos is a highly toxic pesticide which is prohibited in the production of green foods, and in most regions where isocarbophos is used for too long time, strong resistance to isocarbophos is generated. Therefore, the old products can not meet the market demands and a novel acarcide is in urgent needed to solve the problems. Aiming at the functions of acarcide, researchers in our company develops a novel compound acarcide - fenbutatin oxide and pyridaben cream which is effective to red spider mites of orange trees and has the advantages of strong killing ability to prosopon acarid, nymphs and young acarid and acarid eggs, long effective period, no temperature influence, good environmental compatibility and safety to natural enemies.

Description

technical field [0001] The invention relates to a preparation method of fenbutatin·pyridaben emulsifiable concentrate, in particular to a special-effect product used for preventing and controlling spider mites on citrus trees. Background technique [0002] At present, most of the acaricides produced at home and abroad are old varieties such as dicofol of benzhydryl alcohols, clofenac of sulfites, and isocarbophos of organophosphorus. Because these old varieties have been used for a long time, many varieties have developed high resistance, and they are only effective when used in large doses. Due to the long residual time of dicofol (the residue remains in the crops after one year of application), isocarbophos is a highly toxic pesticide, and it is a pesticide that is prohibited in green food production. It has been used for many years, and serious drug resistance has developed in most areas. It can be seen that the above-mentioned old varieties can no longer meet the market...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N55/04A01N43/58A01N25/02A01P7/02
Inventor 陈垦吴家全韩润泽
Owner 北京绿色农华作物科技有限公司
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