15516-47-9Relevant articles and documents
Photoassisted Synthesis of Complex Molecular Architectures: Dearomatization of Benzenoid Arenes with Aza-o-xylylenes via an Unprecedented [2+4] Reaction Topology
Kuznetsov, Dmitry M.,Mukhina, Olga A.,Kutateladze, Andrei G.
, p. 6988 - 6991 (2016)
A new method was developed for the photoinduced dearomatization of arenes through an intramolecular cycloaddition with aza-o-xylylenes generated by excited-state intramolecular proton transfer (ESIPT) in the readily available photoprecursors. The [2+4] topology of this cycloaddition is unprecedented for photo-dearomatizations of benzenoid aromatic carbocycles. It provides rapid access to novel heterocycles, cyclohexadieno-oxazolidino-quinolinols, as valuable synthons for a broad range of post-photochemical transformations. I'm so excited: Photoinduced dearomatization of arenes was achieved through intramolecular cycloaddition with aza-o-xylylenes generated by excited-state intramolecular proton transfer in the readily available photoprecursors. The [2+4] topology of this cycloaddition is unprecedented for photo-dearomatizations of benzenoid aromatic carbocycles and produces the novel heterocycles cyclohexadieno-oxazolidino-quinolinols.
Design and Synthesis of Novel 4-Hydroxyl-3-(2-phenoxyacetyl)-pyran-2-one Derivatives for Use as Herbicides and Evaluation of Their Mode of Action
Lei, Kang,Li, Pan,Yang, Xue-Fang,Wang, Shi-Ben,Wang, Xue-Kun,Hua, Xue-Wen,Sun, Bin,Ji, Lu-Sha,Xu, Xiao-Hua
, p. 10489 - 10497 (2019/10/02)
In order to develop a novel herbicide containing the β-triketone motif, a series of 4-hydroxyl-3-(2-phenoxyacetyl)-pyran-2-one derivatives were designed and synthesized. The bioassay results showed that compound II15 had good pre-emergent herbicidal activity even at a dosage of 187.5 g ha-1. Moreover, compound II15 showed a broader spectrum of weed control when compared with a commercial herbicide 2,4-dichlorophenoxyacetic acid (2,4-D), and displayed good crop safety to Triticum aestivum L. and Zea mays Linn. when applied at 375 g ha-1 under pre-emergence conditions, which indicated its great potential as a herbicide. More importantly, studying the molecular mode of action of compound II15 revealed that the novel triketone structure is a proherbicide of its corresponding phenoxyacetic acid auxin herbicide, which has a herbicidal mechanism similar to that of 2,4-D. The present work indicates that the 4-hydroxyl-3-(2-phenoxyacetyl)-pyran-2-one motif may be a potential lead structure for further development of novel auxin-type herbicides.
Isoflavone amide derivatives, their preparation method and medical use
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, (2017/08/31)
The invention belongs to the field of medicinal chemistry, and relates to derivatives of isoflavones amides, as well as a preparation method and medical application of derivatives, in particular to the derivatives of the isoflavones amides with the general formula of (I) shown as the specification, the preparation method and the medical application of the derivatives, particularly the application of the derivatives of the isoflavones amides serving as medicaments for preventing or treating hyperlipemia, adiposis or type-II diabetes.