Reactive Ketimino Radical Acceptors: Intermolecular Alkyl Radical Addition to Imines with a Phenolic Hydroxyl Group
作者:Hideto Miyabe、Yousuke Yamaoka、Yoshiji Takemoto
DOI:10.1021/jo052518x
日期:2006.3.1
Intermolecular carbon radical addition to the carbon−nitrogen double bond of ketimines was studied. In the study on the reactivity of various aldimines, we found that the aldimine 7 having a phenolic hydroxyl group shows an excellent reactivity toward nucleophilic carbon radicals. A remarkable effect of phenolic hydroxyl group is assumed to be the stabilization of intermediate aminyl radical provided by a
Construction of benzoheterocycles by the reaction of α-arylglyoxylic acids and <i>ortho</i>-functionalized aniline under mild and minimal conditions
作者:Hang Gong、Fangyuan Zhou、Changqun Cai
DOI:10.1039/d3ob01163a
日期:——
benzoxazinones, quinoxalinones and benzothiazoles by the reaction of α-arylglyoxylic acids and ortho-functionalized aniline. In this reaction, no other reagents are needed except for reactants and solvents. The reaction was carried out at a mild temperature of 50 °C with only water and/or carbon dioxide as the by-product. Therefore, the reaction has high practical atom economy. In addition, this strategy
Aqueous Medium Radical Addition to Ketimines with a Phenolic Hydroxyl Group
作者:Yoshiji Takemoto、Hideto Miyabe、Yousuke Yamaoka
DOI:10.1055/s-2004-834803
日期:——
Intermolecular alkyl radical addition to ketimines having 2-phenolic hydroxyl group proceeded effectively in aqueous media, providing the novel method for construction of all-substituted sp3-hybridized carbon center.