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Organic sulfur compound as well as preparation method and application thereof

A compound, organic sulfur technology, applied in the field of pesticides, can solve the problems of poor acaricidal activity and serious resistance, and achieve the effect of low resistance development speed and excellent control effect

Active Publication Date: 2022-04-12
SHANDONG KANGQIAO BIO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of poor acaricidal activity and severe resistance of existing acaricides, the present invention provides an organosulfur compound and its preparation method and application to solve the above problems

Method used

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  • Organic sulfur compound as well as preparation method and application thereof
  • Organic sulfur compound as well as preparation method and application thereof
  • Organic sulfur compound as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Example 1 Preparation of 2-(4-(tert-butyl)phenoxy)cyclohexyl(2,2-difluoroethyl)sulfite (compound 170)

[0080] Step 1: Preparation of 2-(4-tert-butylphenoxy)cyclohexanol

[0081]

[0082] Add toluene (50mL), epoxycyclohexane (117.6g, 1.2mol), p-tert-butylphenol (150g, 1mol) and sodium hydroxide (4g, 0.1mol) successively in a 500ml round bottom flask, and stir Heat to 108 degrees Celsius to react. After reacting for 10 hours, distill under reduced pressure to remove the remaining epoxycyclohexane and toluene. After cooling the reaction solution to 50 degrees Celsius, add 1L ethyl acetate and 1L water. After extraction and separation, add 500mL ethyl acetate to the water layer again. After liquid separation, the organic phases were combined, dried by adding 100 g of anhydrous sodium sulfate, and then rotary evaporated under reduced pressure. After drying, 226 g of white solids were obtained, with a yield of 91.1%.

[0083] Step 2: Preparation of 2-(4-(tert-butyl)pheno...

Embodiment 2

[0089] Example 2 Preparation of 2-(4-(tert-butyl)phenoxy)cyclohexyl(2-fluoroethyl)sulfite (compound 334)

[0090]

[0091] Prepared according to the method described in step 2 of Example 1, properties: colorless viscous oil.

[0092] 1 H-NMR (500MHz, CDCl 3 ):δ=7.25-7.28(m,2H),6.84-6.86(m,2H),4.32-4.58(m,3H),4.24-4.28(m,1H),4.13-4.16(m,2H),2.12 -2.20(m,2H),1.73-1.76(m,2H),1.32-1.68(m,4H),1.28(s,9H).

[0093] MS (m / z, ESI): 381.15 (m+Na).

Embodiment 3

[0094] Example 3 Preparation of 2-(4-(tert-butyl)phenoxy)cyclohexyl(2,2,2-trifluoroethyl)sulfite (compound 6)

[0095] Prepared according to the method described in step 2 of Example 1, properties: colorless viscous oil.

[0096] 1 H-NMR (500MHz, CDCl3): δ=7.25-7.31(m,2H),6.84-6.89(m,2H),4.48-4.58(m,1H),4.12-4.17(m,1H),3.94-3.96 (m,1H),3.69-3.73(m,1H),2.02-2.15(m,2H),1.32-1.74(m,6H),1.29(s,9H).

[0097] MS (m / z, ESI): 417.13 (m+Na).

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Abstract

The invention relates to an organic sulfur compound as well as a preparation method and application thereof, and belongs to the technical field of pesticides. The compound is represented by the following general formula I or an agricultural salt thereof. The compound provided by the invention has an obviously better effect on agricultural pest mites, especially panonychus citri and tetranychus cinnabarinus, than propargite; and the composition shows an excellent control effect on resistant agricultural pest mites, especially resistant panonychus citri.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to an organic sulfur compound and its preparation method and application. Background technique [0002] In recent years, the control of agricultural pest mites has become more and more difficult. The main reason is that pest mites have the characteristics of fast reproduction and strong adaptability, so that agricultural pest mites can quickly develop resistance to existing acaricides. The result has been the increasing use of chemical acaricides. Therefore, there is an urgent need to develop more efficient novel acaricides on the market. [0003] At present, the acaricides used in the market mainly include pyridaben, tebuflufen, triazotin, abamectin, spirodiclofen, spiromethifen, bifenazate, buflufen, etoxazole, Ethofenazole, fenpyrafen, etc. However, with the prolongation of the application time and frequency of the above-mentioned acaricides, the development of ...

Claims

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Application Information

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IPC IPC(8): C07C381/00A01N41/04A01P7/02
Inventor 李宁李先江柳英帅刘瑞宾刘祥伟盛国柱相效忠刘保红陈瑜冯睿杰崔迎蕊王世玲牛家杰刘军伟
Owner SHANDONG KANGQIAO BIO TECH CO LTD