作者: Wei Zhang , Xiaoyang Zhao , Yan Qiao , Xiaokang Guo , Yanyan Wang
DOI: 10.1016/J.COMPTC.2015.08.012
关键词:
摘要: Abstract In this paper, a density functional theory (DFT) study has been carried out to theoretically investigate the mechanisms of direct regioselective phosphonation heteroaryl N-oxides ( A ) with H-phosphonates B1 under metal- and external oxidant-free conditions. The calculated results indicate that reaction proceeds through two stages including nucleophilic addition H-phosphonate N-oxide dehydration. Starting from reactant or its tautomer B2 , possible pathways have suggested studied in first stage. Moreover, three channels -assisted dehydration, dehydration investigated compared second Based on computational results, we can conclude both associated are occur experimental condition, / would lower barriers than This work should be helpful for understanding detailed mechanism title reaction, thus provide valuable insights into rational design effective method/condition kind reaction.