In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Synthesis and evaluation of novel 1-(((6-substituted benzo[d]thiazol-2-yl)amino)(heteroaryl)methyl)naphthalen-2-ol as pesticidal agents, published in 2022, which mentions a compound: 948552-36-1, Name is 1H-Pyrazole-5-carbaldehyde, Molecular C4H4N2O, Product Details of 948552-36-1.
To discover new agrochems. with prominent pesticidal properties, a series of novel β-naphthol derivatives containing benzothiazolylamino and various heteroaryl groups I (R = H, CF3, Cl; Het = pyrazol-5-yl, imidazol-2-yl, pyrimidin-5-yl, etc.) were efficiently synthesized via Betti reaction. The bioassay results showed that most of the synthesized compounds exhibited favorable insecticidal potentials, particularly towards oriental armyworm (50-100% at 200 mg·L-1) and diamondback moth (50-95% at 10 mg·L-1). Some compounds possessed LC50 values of 0.0988-5.8864 mg·L-1 against diamondback moth. Compounds I (R = H; Het = 2-phenyl-2H-1,2,3-triazol-4-yl), I (R = H; Het = 6-chloroimidazo[1,2-a]pyridin-3-yl), I (R = H; Het = 6-bromoimidazo[1,2-a]pyridin-3-yl) also displayed lethality rates of 30-90% against spider mite at the concentration of 100 mg·L-1. Overall, some compounds could be considered as new insecticidal/acaricidal leading structures for further investigation. The calcium imaging experiments revealed that compound I (R = H; Het = 3-bromo-1-(3-chloropyridin-2-yl)-1H-pyrazol-5-yl), I (R = H; Het = 2-phenyl-2H-1,2,3-triazol-4-yl), and 1-((benzo[d]thiazol-2-ylamino)(4-methoxyphenyl)- Methyl)naphthalen-2-ol could activate the release of calcium ions in insect (M. separata) central neurons at a higher concentration (50 mg·L-1). The SAR anal. provided valuable information for further structural modifications.
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