Name: Ethyl 3-oxopentanoateIn 2019 ,《Design, synthesis, insecticidal, and acaricidal activities of novel pyrimidinamine derivatives containing a biphenyl ether》 appeared in Journal of Heterocyclic Chemistry. The author of the article were Li, Lizhong; Zhou, Chunge; Liu, Minhua; Zhang, Ping; Zhang, Ning; Li, Jianming; Li, Tao; Liu, Xingping; Cheng, Shufen; Li, Qianhe; Liu, Aiping. The article conveys some information:
A series of original pyrimidinamine derivatives containing a biphenyl ether moiety I (R = H, Me; R1 = Me, Et, i-Pr; R2 = R3 = H, Me; R4 = H, Me, Cl, etc.) were designed and synthesized. Their insecticidal activities against lepidopteran and hemiptera insects and acaricidal activities were tested. The results of bioassay demonstrated that I (R = Me; R1 = Et; R2 = R3 = H; R4 = t-Bu) showed the best activity (LC50 = 2.08 mg/L) against Tetranychus urticae, which is comparable with the pos. control, spirotetramat (LC50 = 2.27 mg/L), and I (R = Me; R1 = Et; R2 = R3 = H; R4 = Me) showed better activity (LC50 = 0.52 mg/L) against Aphis fabae than the pos. control, imidacloprid (LC50 = 1.02 mg/L), and relatively good activity (LC50 = 2.49 mg/L) against T. urticae. Their structure-activity relationships indicated that both an Et group on the 4-position of the pyrimidine ring and alkyl chain as a para-substituent group of the benzene ring showed good biol. activity. The experimental part of the paper was very detailed, including the reaction process of Ethyl 3-oxopentanoate(cas: 4949-44-4Name: Ethyl 3-oxopentanoate)
Ethyl 3-oxopentanoate(cas: 4949-44-4) belongs to ketone compounds. They are most widely used as solvents, especially in industries manufacturing explosives, lacquers, paints, and textiles. Ketones are also used in tanning, as preservatives, and in hydraulic fluids.Name: Ethyl 3-oxopentanoate
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