Azaanthraquinone assembly from N-propargylamino quinone via iodine-induced 6-endo-dig electrophilic cyclization

Autor: Qiwen Hou, Na Fei, Huaqin Wang, Shaozhong Wang, Zhu-Jun Yao
Rok vydání: 2010
Předmět:
Zdroj: Organicbiomolecular chemistry. 8(18)
ISSN: 1477-0539
Popis: An efficient methodology taking advantage of the excellent nucleophilicity of aminoquinone to assemble the azaanthraquinone framework was developed via an iodine-induced 6-endo-dig electrophilic cyclization. Therefore, starting from N-propargylaminoquinones, various 3-iodo-1-azaanthraquinones were obtained in yields ranging from 45% to 90%. The metal-free protocol features facile installation of an iodine atom on the azaanthraquinone ring and benign functional group compatibility.
Databáze: OpenAIRE