Design, Synthesis, and Acaricidal Activity of Phenyl Methoxyacrylates Containing 2-Alkenylthiopyrimidine

A series of novel phenyl methoxyacrylate derivatives containing a 2-alkenylthiopyrimidine substructure were designed, synthesized, and evaluated in terms of acaricidal activity. The structures of the title compounds were identified by <sup>1</sup>H NMR, <sup>13</sup>C NMR and...

Full description

Bibliographic Details
Main Authors: Shulin Hao, Zengfei Cai, Yangyang Cao, Xiaohua Du
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/25/15/3379
_version_ 1797561340284370944
author Shulin Hao
Zengfei Cai
Yangyang Cao
Xiaohua Du
author_facet Shulin Hao
Zengfei Cai
Yangyang Cao
Xiaohua Du
author_sort Shulin Hao
collection DOAJ
description A series of novel phenyl methoxyacrylate derivatives containing a 2-alkenylthiopyrimidine substructure were designed, synthesized, and evaluated in terms of acaricidal activity. The structures of the title compounds were identified by <sup>1</sup>H NMR, <sup>13</sup>C NMR and high-resolution mass spectra (HRMS). Compound (<i>E</i>)-methyl 2-(2-((2-(3,3-dichloroallylthio)-6-(trifluoromethyl)pyrimidin-4-yloxy)methyl)phenyl)-3-methoxyacr-ylate (<b>4j</b>) exhibited significant acaricidal activity against <i>Tetranychus cinnabarinus</i> (<i>T. cinnabarinus</i>) in greenhouse tests possessing nearly twice the larvicidal and ovicidal activity compared to fluacrypyrim. Furthermore, the results of the field trials demonstrated that compound <b>4j</b> could effectively control <i>Panonychuscitri</i> with long-lasting persistence and rapid action. The toxicology data in terms of LD<sub>50</sub> value confirmed that compound <b>4j</b> has a relatively low acute toxicity to mammals, birds, and honeybees.
first_indexed 2024-03-10T18:13:32Z
format Article
id doaj.art-ef4e9a29971b4a258f874b58d30af688
institution Directory Open Access Journal
issn 1420-3049
language English
last_indexed 2024-03-10T18:13:32Z
publishDate 2020-07-01
publisher MDPI AG
record_format Article
series Molecules
spelling doaj.art-ef4e9a29971b4a258f874b58d30af6882023-11-20T07:57:10ZengMDPI AGMolecules1420-30492020-07-012515337910.3390/molecules25153379Design, Synthesis, and Acaricidal Activity of Phenyl Methoxyacrylates Containing 2-AlkenylthiopyrimidineShulin Hao0Zengfei Cai1Yangyang Cao2Xiaohua Du3Catalytic Hydrogenation Research Center, Zhejiang Key Laboratory of Green Pesticides and Cleaner Production Technology, Zhejiang Green Pesticide Collaborative Innovation Center, Zhejiang University of Technology, Hangzhou 310014, ChinaCatalytic Hydrogenation Research Center, Zhejiang Key Laboratory of Green Pesticides and Cleaner Production Technology, Zhejiang Green Pesticide Collaborative Innovation Center, Zhejiang University of Technology, Hangzhou 310014, ChinaCatalytic Hydrogenation Research Center, Zhejiang Key Laboratory of Green Pesticides and Cleaner Production Technology, Zhejiang Green Pesticide Collaborative Innovation Center, Zhejiang University of Technology, Hangzhou 310014, ChinaCatalytic Hydrogenation Research Center, Zhejiang Key Laboratory of Green Pesticides and Cleaner Production Technology, Zhejiang Green Pesticide Collaborative Innovation Center, Zhejiang University of Technology, Hangzhou 310014, ChinaA series of novel phenyl methoxyacrylate derivatives containing a 2-alkenylthiopyrimidine substructure were designed, synthesized, and evaluated in terms of acaricidal activity. The structures of the title compounds were identified by <sup>1</sup>H NMR, <sup>13</sup>C NMR and high-resolution mass spectra (HRMS). Compound (<i>E</i>)-methyl 2-(2-((2-(3,3-dichloroallylthio)-6-(trifluoromethyl)pyrimidin-4-yloxy)methyl)phenyl)-3-methoxyacr-ylate (<b>4j</b>) exhibited significant acaricidal activity against <i>Tetranychus cinnabarinus</i> (<i>T. cinnabarinus</i>) in greenhouse tests possessing nearly twice the larvicidal and ovicidal activity compared to fluacrypyrim. Furthermore, the results of the field trials demonstrated that compound <b>4j</b> could effectively control <i>Panonychuscitri</i> with long-lasting persistence and rapid action. The toxicology data in terms of LD<sub>50</sub> value confirmed that compound <b>4j</b> has a relatively low acute toxicity to mammals, birds, and honeybees.https://www.mdpi.com/1420-3049/25/15/3379phenyl methoxyacrylatesthioethersynthesisacaricidal activitystructure activity relationships
spellingShingle Shulin Hao
Zengfei Cai
Yangyang Cao
Xiaohua Du
Design, Synthesis, and Acaricidal Activity of Phenyl Methoxyacrylates Containing 2-Alkenylthiopyrimidine
Molecules
phenyl methoxyacrylates
thioether
synthesis
acaricidal activity
structure activity relationships
title Design, Synthesis, and Acaricidal Activity of Phenyl Methoxyacrylates Containing 2-Alkenylthiopyrimidine
title_full Design, Synthesis, and Acaricidal Activity of Phenyl Methoxyacrylates Containing 2-Alkenylthiopyrimidine
title_fullStr Design, Synthesis, and Acaricidal Activity of Phenyl Methoxyacrylates Containing 2-Alkenylthiopyrimidine
title_full_unstemmed Design, Synthesis, and Acaricidal Activity of Phenyl Methoxyacrylates Containing 2-Alkenylthiopyrimidine
title_short Design, Synthesis, and Acaricidal Activity of Phenyl Methoxyacrylates Containing 2-Alkenylthiopyrimidine
title_sort design synthesis and acaricidal activity of phenyl methoxyacrylates containing 2 alkenylthiopyrimidine
topic phenyl methoxyacrylates
thioether
synthesis
acaricidal activity
structure activity relationships
url https://www.mdpi.com/1420-3049/25/15/3379
work_keys_str_mv AT shulinhao designsynthesisandacaricidalactivityofphenylmethoxyacrylatescontaining2alkenylthiopyrimidine
AT zengfeicai designsynthesisandacaricidalactivityofphenylmethoxyacrylatescontaining2alkenylthiopyrimidine
AT yangyangcao designsynthesisandacaricidalactivityofphenylmethoxyacrylatescontaining2alkenylthiopyrimidine
AT xiaohuadu designsynthesisandacaricidalactivityofphenylmethoxyacrylatescontaining2alkenylthiopyrimidine