Novel Approach in the Synthesis of Some Pyrimidines with Eminent Toxicological Effects towards Aphis gossypii ( Glover , 1887) and Outstanding Safety against Earthworms ( Aporrectodea caliginosa )

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Authors: Mahmoud S. Tolba, Mohamed A. Gad, Mohamed R. Fouad, Prof Adel M. Kamal El-Dean, Shaban A. A. Abdel‐Raheem
Cited by: 5
References: 52

Abstract

This study reports the synthesis and bioevaluation of ten novel pyranothiazolopyrimidine derivatives. Their insecticidal efficacy against Aphis gossypii ( Glover, 1887) revealed compounds 3 and 10 as lead candidates, exhibiting toxicity comparable to the commercial standard acetamiprid insecticide. Notably, these compounds demonstrated a markedly safer ecotoxicological profile toward the earthworms ( Aporrectodea caliginosa ), with LC 50 values orders of magnitude higher than acetamiprid over 5- and 10-day exposures. Application also induced measurable changes in soil chemistry. These findings identify compounds 3 and 10 as promising insecticidal agents that combine potent aphid toxicity with significantly reduced nontarget risk, highlighting their potential for further development.

Fields of Study & Subjects

Advanced Synthetic Organic Chemistry Organic Chemistry Synthesis Methods Fungal Plant Pathogen Control

Publication details

Journal / source
Journal of Agricultural and Food Chemistry
Publisher
American Chemical Society (ACS)
Volume
74
Issue
8
Pages
6683–6693
Publication date
19 February 2026
Language
EN