32870-22-7Relevant academic research and scientific papers
Visible-Light-Photocatalyzed Synthesis of Phenanthridinones and Quinolinones via Direct Oxidative C-H Amidation
Moon, Yonghoon,Jang, Eunyoung,Choi, Soyeon,Hong, Sungwoo
supporting information, p. 240 - 243 (2018/01/17)
A straightforward synthetic strategy to construct biologically relevant phenanthridinones and quinolinones was developed via visible-light-promoted direct oxidative C-H amidation. In this photocatalytic system, amidyl radicals can be generated by homolysis of the N-H bond of simple amide precursors via single-electron transfer under blue LED illumination, which leads to oxidative intramolecular C-H amidation. Moreover, an efficient synthetic strategy using a photocascade enabled facile assembly of quinolinone structures through a catalytic sequence involving triplet energy (ET) transfer-based E/Z olefin isomerization and subsequent photocatalytic generation of amidyl radical intermediates.
Palladium-catalyzed [3+3] annulation between diarylamines and α,β-unsaturated acids through C-H activation: Direct access to 4-substituted 2-quinolinones
Kancherla, Rajesh,Naveen, Togati,Maiti, Debabrata
supporting information, p. 8360 - 8364 (2015/06/02)
A C-H activation strategy has been successfully employed for the high-yielding synthesis of a diverse array of 4-substituted 2-quinolinone species by a palladium-catalyzed dehydrogenative coupling involving diarylamines. This intermolecular annulation app
Ligand-enabled triple C-H activation reactions: One-pot synthesis of diverse 4-aryl-2-quinolinones from propionamides
Deng, Youqian,Gong, Wei,He, Jian,Yu, Jin-Quan
supporting information, p. 6692 - 6695 (2014/07/08)
Diverse 4-aryl-2-quinolinones are prepared from propionamides in one pot by ligand-promoted triple sequential C-H activation reactions and a stereospecific Heck reaction. In these cascade reactions, three new C-C bonds and one C-N bond are formed to rapidly build molecular complexity from propionic acid. Building complexity: Diverse 4-aryl-2-quinolinones such as 1 are prepared from propionamides in one pot by pyridine ligand-promoted triple sequential C-H activation reactions and a stereospecific Heck reaction. In these cascade reactions, three new C-C bonds and one C-N bond are formed to rapidly build molecular complexity from propionic acid.
Palladium-catalyzed intramolecular amidation of C(sp2)-H bonds: Synthesis of 4-aryl-2-quinolinones
Inamoto, Kiyofumi,Saito, Tadataka,Hiroya, Kou,Doi, Takayuki
supporting information; experimental part, p. 3900 - 3903 (2010/07/05)
Figure presented A catalytic synthetic approach for the synthesis of 2-quinolinone compounds through a Pd-catalyzed C(sp2)-H functionalization/intramolecular amidation sequence is described. The cyclization process efficiently proceeds in the p
Reversibility in Lewis-acid promoted reactions of N-arylcinnamamides
Elliott, Mark C.,Wordingham, Stuart V.
, p. 898 - 900 (2007/10/03)
The Lewis-acid promoted cyclisation reactions of N-arylcinnamamides have been investigated. With aluminium chloride a range of products were obtained, while much more selective cyclisation reactions were observed with bismuth chloride.
