Substitutions of Fluorine Atoms and Phenoxy Groups in the Synthesis of Quinoxaline 1,4-di-N-oxide Derivatives
作者:Esther Vicente、Raquel Villar、Asunción Burguete、Beatriz Solano、Saioa Ancizu、Silvia Pérez-Silanes、Ignacio Aldana、Antonio Monge
DOI:10.3390/molecules13010086
日期:——
The unexpected substitution of fluorine atoms and phenoxy groups attached to quinoxaline or benzofuroxan rings is described. The synthesis of 2-benzyl- and 2-phenoxy-3-methylquinoxaline 1,4-di-N-oxide derivatives was based on the classical Beirut reaction. The tendency of fluorine atoms linked to quinoxaline or benzofuroxan rings to be replaced by a methoxy group when dissolved in an ammonia saturated
描述了与喹喔啉或苯并呋喃环相连的氟原子和苯氧基的意外取代。2-苄基-和2-苯氧基-3-甲基喹喔啉1,4-二-N-氧化物衍生物的合成基于经典的贝鲁特反应。当溶解在氨饱和的甲醇溶液中时,与喹喔啉或苯并呋喃环相连的氟原子倾向于被甲氧基取代。此外,在气态氨存在下,2-苯氧基喹喔啉1,4-二-N-氧化物衍生物变成2-氨基喹喔啉1,4-二-N-氧化物衍生物。