The tandem reaction of photoinduced double hydrogen-atom transfer and deoxygenative transborylation for chemo- and site-selective reduction of nitroarenes into aryl amines under catalyst-free, room temperature conditions was disclosed in excellent yields. In this reaction, isopropanol (iPrOH) was used as hydrogen donor and tetrahydroxydiboron [B2(OH)4] as deoxygenative reagent with green, cheap, and
在无催化剂、室温条件下,光诱导双氢原子转移和脱氧转
硼酸化的串联反应用于将硝基
芳烃化学选择性和位点选择性还原为芳基胺,其产率很高。在该反应中,
异丙醇 ( i PrOH) 用作氢供体和
四羟基二硼 [B 2 (OH) 4] 作为脱氧试剂,具有绿色、廉价和可商购的证书。特别是,广泛的可还原官能团,如卤素(-Cl、-Br 甚至 -I)、烯基、炔基、醛、酮、羧基和
氰基都是可耐受的。此外,与同一分子中的另一个硝基相比,该反应优先还原缺电子位点的硝基。结合实验和理论计算的详细机理研究为反应途径提供了合理的解释。