Nitration of 2,3-dihydroimidazo[1,2-a]benzimidazole and its N 9-substituted derivatives
作者:Vadim S. Sochnev、Tatyana A. Kuz'menko、Anatolii S. Morkovnik、Lyudmila N. Divaeva、Anastasia S. Podobina、Alexander A. Zubenko、Pavel B. Chepurnoy、Gennadii S. Borodkin、Alexander I. Klimenko
DOI:10.1016/j.mencom.2021.07.040
日期:2021.7
7-Nitro-2,3-dihydroimidazo[1,2-a]benzimidazole and its N9-substituted derivatives can be conveniently synthesized by nitration of the corresponding tricyclic precursors with a nitrating mixture or with the HNO3/CF3COOH system. This reaction occurs fairly smoothly and with good regioselectivity.
7-硝基-2,3-二氢咪唑并[1,2- a ]苯并咪唑及其N 9 -取代衍生物可以通过用硝化混合物或用HNO 3 /CF 3 COOH体系硝化相应的三环前体来方便地合成。该反应进行得相当顺利并且具有良好的区域选择性。