Synthesis of hetarylsulfanyl- and hetaryloxyfuroxans by nucleophilic substitution of nitro group in nitrofuroxans with heterocyclic thiol and hydroxy derivatives*
作者:Leonid L. Fershtat、Margarita A. Epishina、Alexander S. Kulikov、Marina I. Struchkova、Nina N. Makhova
DOI:10.1007/s10593-015-1678-5
日期:2015.2
aromatic substituents at the ring С-3 atom, allowing to obtain a library of previously unknown hetarylsulfanylfuroxans, while the reaction with hydroxy heterocycles was successful only in the case of 4-nitro-3-phenylfuroxan, the rest of the nitrofuroxans showing low reactivity, and substitution products could be obtained only in certain cases. 4-Nitrofuroxans with electron-withdrawing substituents (NO2
我们报告了一种合成方法,该方法基于4-呋喃呋喃中的硝基被HetS和HetO基团通过与杂芳硫醇和羟基的反应引入的亲核取代,合成了包含呋喃和S-和О-桥连接的杂环片段的未知未知杂环系统1,8-二氮杂双环[5.4.0] undec-7-ene /МеCN系统中的室温杂环。我们表明,杂芳硫醇与在环С-3原子上包含脂肪族,苄基和芳族取代基的4-硝基呋喃喃反应,从而获得了以前未知的杂芳基硫烷基呋喃烷的文库,而仅在4-情况下与羟基杂环的反应才成功硝基-3-苯基呋喃喃,其余的硝基呋喃烷显示低的反应性,并且仅在某些情况下可以获得取代产物。2,CONH 2)起氧化剂作用,形成1,2-二(杂芳基)二硫化物。