620621-48-9Relevant articles and documents
Tunable aryl imidazolium ionic liquids (TAIILs) as environmentally benign catalysts for the esterification of fatty acids to biodiesel fuel
Ho, Wen-Yueh,Lin, Wesley,Lin, Yi-Jyun,Luo, Shun-Yuan,Pantawane, Amit,Su, Po-Fang,Thul, Mayur,Tseng, Shao-An,Wu, Hsin-Ru
, (2020/12/02)
Herein, we describe the synthesis of tunable aryl imidazolium ionic liquid catalysts and tested for esterification of fatty acids to biodiesel. In this work, six tunable aryl imidazolium ionic liquids (TAIILs) 1a-1f were prepared. These ionic liquids were used as the economical and reusable catalysts for the synthesis of biodiesel fuels. The reaction has been preceded in a monophase at 80 °C for 4 h, after which the product was separated from the catalyst system by a simple liquid/liquid phase separation at room temperature with excellent yields. With the simple post-process, the catalyst is reusable at least 6 times. This novel method offers a short reaction time, good yields, and environmentally benign characteristics.
Synthesis and biological activity of benzamides substituted with pyridine-linked 1,2,4-oxadiazole
Dai, Li,Liu, Xing-Hai,Ma, Tian-Yang,Mei, Jun-Chang,Ren, Chao-Li,Tan, Cheng-Xia,Tian, Xiao-Yu,Yang, Sen
, (2020/08/28)
To find pesticidal lead compounds with high activity, a series of novel benzamides substituted with pyridine-linked 1,2,4-oxadiazole were designed by bioisosterism, and synthesized easily via esterification, cyanation, cyclization and aminolysis reactions
Novel bifenthrin derivatives, and preparation method and application thereof
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Paragraph 0077-0084, (2019/08/30)
The invention discloses novel bifenthrin derivatives, and a preparation method and application thereof. The novel bifenthrin derivatives have a structural formula as shown in a formula (I) which is described in the specification. In the formula (I), when R1 is H, R2 is a Cl or CF3 substituent group, and R3 is H or a substituted or unsubstituted non-heterocyclic or heterocyclic aryl group; when R1is a Cl substituted group, R 2 is H or a Cl or CF3 substituent group, and R3 is H or a substituted or unsubstituted non-heterocyclic or heterocyclic aryl group; the non-heterocyclic aryl group is a phenyl, naphthyl, anthryl, phenanthryl or pyrenyl group; and the heterocyclic aryl group is a five-to-nine-membered monocyclic or polycyclic heterocyclic aryl group with one or more O or S heteroatoms.According to the invention, a series of the novel bifenthrin derivatives are synthesized mainly by modifying and transforming ortho-position and terminal-position benzene rings on the intermediate benzene rings of bifenthrin; and the novel bifenthrin derivatives have excellent insecticidal and mosquito-killing effect on both larvae and adult mosquitoes, are significantly reduced in toxicity and improved in metabolic stability, and shows good application prospects.