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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