A one-pot approach to 10-(1 H -1,2,3-triazol-1-yl)pyrimido[1,2- a ]indoles via aryne-mediated transformations of 3-(pyrimidin-2-yl)-1,2,4-triazines
作者:Dmitry S. Kopchuk、Nikolay V. Chepchugov、Albert F. Khasanov、Igor S. Kovalev、Sougata Santra、Emiliya V. Nosova、Grigory V. Zyryanov、Adinath Majee、Vladimir L. Rusinov、Oleg N. Chupakhin
DOI:10.1016/j.tetlet.2016.07.052
日期:2016.8
toward 10-(1H-1,2,3-triazol-1-yl)pyrimido[1,2-a]indoles, including fluorinated derivatives, has been developed. The transformation of the 1,2,4-triazine ring of readily available 3-(pyrimidin-2-yl)-1,2,4-triazines proceeds via reaction with in situ generated aryne intermediates. Improved methods have been developed for the synthesis of the starting 5,6-diaryl- and 6-aryl-3-(pyrimidin-2-yl)-1,2,4-triazines
已开发出一种有效的合成方法,用于合成10-(1 H -1,2,3-三唑-1-基)嘧啶并[1,2- a ]吲哚,包括氟化衍生物。容易获得的3-(嘧啶-2-基)-1,2,4-三嗪的1,2,4-三嗪环的转化是通过与原位生成的芳烃中间体反应进行的。已经开发了用于合成起始5,6-二芳基-和6-芳基-3-(嘧啶-2-基)-1,2,4-三嗪的改进方法。研究了芳烃中间体的性质对反应路径的影响。通过单晶X射线晶体学确认所获得的嘧啶并[1,2- a ]吲哚的结构。