α,β-Functionalization of saturated ketones with anthranils via Cu-catalyzed sequential dehydrogenation/aza-Michael addition/annulation cascade reactions in one-pot
An efficient method to access functionalized quinolines from the readily available saturatedketones and anthranils have been explored. This one-pot cascade reaction involves the in situ generation of α,β-unsaturated ketones by the copper catalysed dehydrogenation of saturatedketones followed by the aza-Michael addition of anthranils and subsequent annulation.
Transition-Metal-Free Quinoline Synthesis from Acetophenones and Anthranils via Sequential One-Carbon Homologation/Conjugate Addition/Annulation Cascade
作者:Sandip Balasaheb Wakade、Dipak Kumar Tiwari、Pothapragada S. K. Prabhakar Ganesh、Mandalaparthi Phanindrudu、Pravin R. Likhar、Dharmendra Kumar Tiwari
DOI:10.1021/acs.orglett.7b02429
日期:2017.9.15
the construction of functionalized quinolines from readily available acetophenones and anthranils is reported. This one-pot reaction cascade involves in situ generation of α,β-unsaturated ketones from the acetophenone via one-carbon homologation by DMSO followed by the aza-Michael addition of anthranils and subsequent annulation. DMSO acted in this reaction not only as solvent but also as one carbon source
An efficient 3-acylquinoline synthesis from acetophenones and anthranil<i>via</i>C(sp<sup>3</sup>)–H bond activation mediated by Selectfluor
作者:Yejun Gao、Robert C. Hider、Yongmin Ma
DOI:10.1039/c9ra01481k
日期:——
method for the synthesis of 3-functionalized quinolines from commercially available acetophenones and anthranil has been described. Selectfluor propels the C(sp3)–H bond activation of the acetophenones and aza-Michael addition of anthranil resulting in annulated 3-acylquinolines in moderate to high yields. DMSO acts not only as a solvent but also as a one carbon donor in the reaction.
Nitrogen-containing heterocyclic compound and salt thereof, and a fungicide for agricultural and horticultural use
申请人:Mitani Akira
公开号:US09062024B2
公开(公告)日:2015-06-23
The present invention provides a nitrogen-containing heterocyclic compound represented by formula (I) and salt thereof, which is useful as an active ingredient of a fungicide for agricultural and horticultural use, having an assured effect and being safely usable.
Carbonylative Transformations Using a DMAP-Based Pd-Catalyst through Ex Situ CO Generation
作者:Pallabi Halder、Ashif Iqubal、Krishanu Mondal、Narottam Mukhopadhyay、Parthasarathi Das
DOI:10.1021/acs.joc.3c01725
日期:2023.11.3
aminocarbonylation and carbonylative Suzuki–Miyaura coupling has been developed using a novel palladium complex, [PdII(DMAP)2(OAc)2]. The complex was successfully synthesized using a stoichiometric reaction between PdII(OAc)2 and DMAP in acetone at room temperature and characterized using single-crystal X-ray analysis. Only 5 mol % catalyst loading was sufficient for effective carbonylativetransformations. “Chloroform-COware”
使用新型钯配合物[Pd II (DMAP) 2 (OAc) 2 ]开发了一种无膦、高效的氨基羰基化和羰基化Suzuki-Miyaura偶联方案。该复合物是在室温下在丙酮中通过 Pd II (OAc) 2和 DMAP之间的化学计量反应成功合成的,并使用单晶 X 射线分析进行了表征。仅 5 mol% 的催化剂负载量就足以实现有效的羰基化转化。利用“氯仿-COware”化学方法,在两室装置中使用氯仿作为廉价的 CO 源,安全、轻松地插入羰基单元。利用该技术合成了CX-516、CX-546、farampator等多种增值药学相关化合物。此外,商业设计的 COware 被设计为 COware-RB 设置,用于连续一锅合成茚并异喹啉(拓扑异构酶 I 抑制剂)。