Rh(<scp>iii</scp>)-Catalyzed straightforward arylation of 8-methyl/formylquinolines using diazo compounds
作者:Bidhan Ghosh、Rajarshi Samanta
DOI:10.1039/c9cc02391g
日期:——
A straightforward Rh(III)-catalyzed general strategy was developed for the introduction of naphthol/phenol moieties to the C(sp3)–H bond of 8-methylquinoline using diazonaphthalen-2(1H)-ones/quinone diazides. The developed method was further extended towards the arylation of 8-formylquinolines to accomplish diarylketone derivatives. The method is simple, relatively rapid, and chemo and regioselective
Synthesis of Diverse Indene Derivatives from 1-Diazonaphthalen-2(1<i>H</i>)-ones via Thermal Cascade Reactions
作者:Krishna Bahadur Somai Magar、Yong Rok Lee
DOI:10.1021/ol4019908
日期:2013.9.6
generates 1H-indene-3-carboxamides or 1H-indene-3-carboxylates. This constitutes an unprecedented three-component coupling reaction that allows for the synthesis of functionalized indenederivatives under catalyst-free thermal conditions.
1-重氮萘-2(1 H)-的连续Wolff重排,然后在存在各种醛的情况下用伯胺和芳族胺或醇和酚捕获烯酮中间体,生成1 H-茚3羧酰胺或1 H -茚-3-羧酸盐。这构成了前所未有的三组分偶联反应,可在无催化剂的热条件下合成官能化的茚衍生物。
Oxygen‐Linked Cyclopentadienyl Rhodium(III) Complexes‐Catalyzed Asymmetric C−H Arylation of Benzo[
<i>h</i>
]quinolines with 1‐Diazonaphthoquinones
作者:Chongqing Pan、Si‐Yong Yin、Shao‐Bo Wang、Qing Gu、Shu‐Li You
DOI:10.1002/anie.202103638
日期:2021.7.5
functionalization reactions have witnessed a significant progress in organic synthesis. In sharp contrast, the reported chiral Cp ligands are limited to C-linked Cp and are often synthetically challenging. To address these issues, we have developed a novel class of tunable chiral cyclopentadienyl ligands bearing oxygen linkers, which were efficient catalysts for C−H arylation of benzo[h]quinolines with
3-Naphthylindoles as new promising candidate antioxidant, antibacterial, and antibiofilm agents
作者:Kavita Sharma、Ek Raj Baral、Muhammad Saeed Akhtar、Yong Rok Lee、Sung Hong Kim、Young-Jung Wee
DOI:10.1007/s11164-016-2768-4
日期:2017.4
significant attention in organic synthesis and bioactivity research owing to their substantial biologicalactivity. In the present study, several 3-naphthylindole analogues were synthesized by direct arylation of 1-diazonaphthalene-2-(1 H )-ones by rhodium(II)-catalyzed cross-coupling reaction and their antioxidant and antibacterial properties evaluated. Among the analogues tested, compound 3m displayed
摘要 吲哚衍生物具有重要的生物活性,因此在有机合成和生物活性研究中引起了广泛的关注。在本研究中,通过铑(II)催化的交叉偶联反应将1-重氮萘-2-(1 H )-酮直接芳基化,合成了几种3-萘萘类似物, 并评估了它们的抗氧化和抗菌性能。在测试的类似物中,化合物 3m 表现出最高的抗氧化活性[通过三价铁还原抗氧化剂能力(FRAP)和2,2-二苯基-1-吡啶并肼基(DPPH)测试进行评估),而化合物 3c 表现出最低的活性。还针对形成生物膜的细菌种类(革兰氏阴性)筛选了化合物 大肠杆菌 和 铜绿假单胞菌 ,以及革兰氏阳性 金黄色葡萄球菌 和 蜡状芽孢杆菌 )。化合物 3b , i , j , p 对 大肠杆菌 表现出强大的抗菌活性 。同样,化合物 3p 通过完全抑制 大肠杆菌的 生物膜形成,表现出优于槲皮素(4.2μg/ mL)的活性 。此外,化合物 3e , j 对 蜡状芽孢杆菌 的最大抑制浓度(IC