66252-10-6Relevant academic research and scientific papers
6-Aroylated phenanthridines via base promoted homolytic aromatic substitution (BHAS)
Leifert, Dirk,Daniliuc, Constantin Gabriel,Studer, Armido
, p. 6286 - 6289 (2013)
Readily accessible 2-isocyanobiphenyls react with aromatic aldehydes via base promoted homolytic aromatic substitution (BHAS) to give 6-aroylated phenanthridines. Reactions occur via addition of acyl radicals to the isonitrile functionality and subsequent intramolecular BHAS of the intermediate imidoyl radicals. Initiation of the radical chain reaction is best achieved with small amounts of FeCl3 (0.4 mol %), and the commercially available and cheap tBuOOH is used as the oxidant.
4CzIPN-tBu-Catalyzed Proton-Coupled Electron Transfer for Photosynthesis of Phosphorylated N-Heteroaromatics
Liu, Yan,Chen, Xiao-Lan,Li, Xiao-Yun,Zhu, Shan-Shan,Li, Shi-Jun,Song, Yan,Qu, Ling-Bo,Yu, Bing
, p. 964 - 972 (2021/01/12)
2,4,5,6-Tetrakis(3,6-di-tert-butyl-9H-carbazol-9-yl)isophthalonitrile (4CzIPN-tBu) was developed as a photocatalyst for the phosphorus-radical-initiated cascade cyclization reaction of isocyanides. By using 4CzIPN-tBu as catalyst, we developed a visible-light-induced proton-coupled electron transfer strategy for the generation of phosphorus-centered radicals, via which a wide range of phosphorylated phenanthridines, quinolines, and benzothiazoles were successfully constructed.
Silver-catalyzed oxidative decarboxylation of difluoroacetates: Efficient access to C-CF2 bond formation
Wan, Wen,Ma, Guobin,Li, Jialiang,Chen, Yunrong,Hu, Qingyang,Li, Minjie,Jiang, Haizhen,Deng, Hongmei,Hao, Jian
, p. 1598 - 1601 (2016/01/30)
A mild, versatile and efficient method for the silver(i)-catalyzed oxidative decarboxylative gem-difluoromethylenation has been developed. The radical cascade reaction comprises the addition of an oxidatively generated difluoromethylene radical to the isonitrile functionality and subsequent homolytic aromatic substitution. It provides a novel and efficient access to the C-CF2 bond formation.
Discovery and characterization of aryl isonitriles as a new class of compounds versus methicillin- and vancomycin-resistant Staphylococcus aureus
Davis, Dexter C.,Mohammad, Haroon,Kyei-Baffour, Kwaku,Younis, Waleed,Creemer, Cassidy Noel,Seleem, Mohamed N.,Dai, Mingji
, p. 384 - 390 (2015/07/20)
Methicillin- and vancomycin-resistant Staphylococcus aureus (MRSA and VRSA) have emerged as a global health concern. A new class of compounds featuring an aryl isonitrile moiety has been discovered that exhibits potent inhibitory activity against several clinically-relevant MRSA and VRSA isolates. Structure-activity relationship studies have been conducted to identify the aryl isonitrile group as the key functional group responsible for the observed antibacterial activity. The most potent antibacterial aryl isonitrile analogs (MIC 2 μM) did not show any toxicity against mammalian cells up to a concentration of 64 μM.
Modular synthesis of phenanthridine derivatives by oxidative cyclization of 2-isocyanobiphenyls with organoboron reagents
Tobisu, Mamoru,Koh, Keika,Furukawa, Takayuki,Chatani, Naoto
, p. 11363 - 11366 (2013/01/15)
Where HAS you been? A manganese-mediated annulation of 2-isocyanobiaryls with organoboronic acids is developed for the synthesis of a broad range of phenanthridine derivatives (see scheme). Mechanistic studies indicate that the reaction proceeds by the intramolecular homolytic aromatic substitution (HAS) of an imidoyl radical intermediate. Copyright
