2022
Raúl Velasco-Azorsa, Reyna Zeferino-Díaz, José G Alvarado-Rodríguez, Heraclio López-Ruiz, Susana Rojas-Lima, Kinardo Flores-Castro, Ignacio Cid del Prado-Vera, Raquel Alatorre-Rosas, Felipe Tut-Pech, María G Carrillo-Benítez ,Eleuterio Burgueño-Tapia, J Martín Torres-Valencia. Nematicidal activity of furanoeremophilenes against Meloidogyne incognita and Nacobbus aberrans. Pest Management Science, 2022. https://doi.org/10.1002/ps.6888
Abstract
While searching for novel small molecules for new organic pesticide agents against plant-parasitic nematodes, we found that the hexane extract from the roots of Senecio sinuatos and its main secondary metabolite, 3?-angeloyloxy-6?-hydroxyfuranoeremophil-1(10)-ene (1), possess nematicidal activity against the second stage juvenile (J2) of Meloidogyne incognita and Nacobbus aberrans. Both species reduce yield of various vegetable crops. These results encouraged us to synthesize esters 3?9 formed by diol 2, obtained by alkaline hydrolysis of 1 and acetic anhydride, benzoic acid, 2-nitrobenzoic acid, 2-bromobenzoic acid, 4-nitrobenzoic acid, 4-bromobenzoic acid, and 4-methoxybenzoic acid, respectively. The nematicidal activity of these esters was evaluated and compared with that of the free benzoic acids.
Stereoselective addition of allylmagnesium chloride to the CN bond of [4.3.0] boron heterobicycles
Synthesis of new homochiral 2,3-dialkylpiperazines derived from (R)-(?)-phenylglycinol
Preparation of N-aryl-substituted spiro-?-lactams via Staudinger cycloaddition
Study of the reactivity of squarylferrocenes. Addition of amines and aminoesters
O-benzyl-N-(2-furoyl)thiocarbamate
A practical access to acyl radicals from acyl hydrazides
Diastereoselective alkylation of chiral glycinate derivatives containing the ?-phenylethyl group.
Et3B, an Efficient Mediator for Xanthate Transfer Based Radical Processes