作者:Dmitry V. Osipov、Alina A. Artemenko、Pavel E. Krasnikov、Vitaly A. Osyanin
DOI:10.1007/s10593-023-03189-9
日期:2023.5
A method for the synthesis of 3-nitro-4H-benzo[h]chromenes was developed based on the reaction of 1-naphthoquinone 2-methides generated in situ from Mannich bases with 4-(2-nitrovinyl)morpholine. It was shown that such nucleophiles as morpholine and 4-bromoaniline add to the double bond of the pyran ring.
基于曼尼希碱原位生成的1-萘醌2-甲基化物与4-(2-硝基乙烯基)吗啉的反应,开发了一种合成3-硝基-4H-苯并[ h ]色烯的方法。结果表明,诸如吗啉和4-溴苯胺之类的亲核试剂会加成到吡喃环的双键上。