A straightforward preparation of benzo[f]naphtho[b][1,4]oxazepines from TNT
作者:Alexander V. Samet、Konstantine A. Kislyi、Victor N. Marshalkin、Yuri A. Strelenko、Mikhail M. Raihstat、Yulia V. Nelyubina、Victor. V. Semenov
DOI:10.1016/j.tet.2008.09.090
日期:2008.12
2,4,6-Trinitrotoluene readily reacts with 1-nitroso-2-naphthol to afford 9,11-dinitrobenzo[f]naphtho[2,1-b][1,4]oxazepine. The nitro groups of the latter undergo displacement by O- and S-nucleophiles with preferential substitution of the 11-NO2 (peri-nitro group). The structures of the substitution products are confirmed by X-ray diffraction and 1H NMR NOE experiments.
2,4,6-三硝基甲苯容易与1-亚硝基-2-萘酚反应,得到9,11-二硝基苯并[ f ]萘并[ 2,1- b ] [1,4]奥氮平。后者的硝基通过经历位移ø -和小号与11-NO的优先取代-nucleophiles 2(迫硝基组)。取代产物的结构通过X射线衍射和1 H NMR NOE实验确认。