Functional Group Transformations in Derivatives of 1,4-Dihydrobenzo[1,2,4]triazinyl Radical
作者:Agnieszka Bodzioch、Minyan Zheng、Piotr Kaszyński、Greta Utecht
DOI:10.1021/jo500898e
日期:2014.8.15
iodo derivatives 1c, 1d, and 2d were also successful and efficient. Reduction of NO2 in 1e led to aniline derivative 1t, which was reductively alkylated with hexanal and coupled to l-proline. Selected benzo[1,2,4]triazinyl radicals were characterized by EPR and electronic absorption spectroscopy, and the results were analyzed in tandem with DFT computational methods. Lastly, the mechanism for formation
官能团的转化OCOPh,OCH 2 PH,I,NO 2和CO 2我在布拉特的自由基衍生物1 - 5是在为了开发合成工具苯并掺入[1,2,4]三嗪基系统成复杂的调查分子结构。因此,OCOPh的碱性水解或PCH催化的OCH 2 Ph的脱苄基作用使苯酚官能度被酰化和烷基化。Pd催化的碘衍生物1c,1d和2d的Suzuki,Negishi,Sonogashira和Heck C-C交叉偶联反应也是成功和有效的。NO的还原2在1E生成苯胺衍生物1t,将其用己醛还原烷基化并偶联至l-脯氨酸。通过EPR和电子吸收光谱对选定的苯并[1,2,4]三嗪基进行了表征,并通过DFT计算方法对结果进行了分析。最后,使用B3LYP / 6-31G(2d,p)方法研究了1,4-二氢苯并[1,2,4]三嗪环的形成机理。