Potential insecticidal activity of aminonaphthoquinone Mannich bases derived from lawsone and their copper (II) complex derivatives
Author:
Matos Andréia P.1ORCID, Sarria André L. F.1, Volante Ana C.1, Bernardo Antônio R.1, Cunha Gracielle O. S.2, Fernandes João B.1, Vieira Paulo C.1, da Silva Maria Fátima das G. F.1
Affiliation:
1. Department of Chemistry , Natural Products Laboratory, Federal University of São Carlos (UFSCar) , 13565-905 , São Carlos , SP , Brazil 2. Federal Institute of Education, Science and Technology of Goias, Campus Anapolis , Avenida Pedro Ludovico, 75131-457 , Anapolis , GO , Brazil
Abstract
Abstract
The fall armyworm, Spodoptera frugiperda, is a polyphagous pest that causes important damage in different regions of America and mainly affects corn crops in both tropical and subtropical areas. Currently, control relies on both transgenic plants and/or chemical pesticides. In this work, we describe insecticidal activity against the fall armyworm from a series of Mannich bases (1–10), derived from 2-hydroxy-1,4-naphthoquinone (lawsone), substituted benzaldehydes, and two primary amines, and their Cu2+ complexes (11–20). The [Cu(L)2] complexes were more effective in larval mortality compared to the free Mannich bases. Among the tested compounds, complex 11 showed the highest toxicity, with 70.00% larval mortality.
Funder
National Council for Scientific and Technological Development Coordination for the Improvement of Higher Education Personnel Fundação de Amparo à Pesquisa do Estado de São Paulo
Publisher
Walter de Gruyter GmbH
Subject
General Biochemistry, Genetics and Molecular Biology
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