Reductive heterocyclizations via indium/iodine-promoted one-pot conversion of 2-nitroaryl aldehydes, ketones, and imines
作者:Rongbi Han、Kee In Son、Gil Hwan Ahn、Young Moo Jun、Byung Min Lee、Younbong Park、Byeong Hyo Kim
DOI:10.1016/j.tetlet.2006.08.027
日期:2006.10
2-Nitroaryl aldehydes, ketones, and imines were reductively cyclized to 2,1-benzisoxazoles with good yields in the presence of indium and iodine in MeOH. Under a similar condition, N-(2-nitrobenzylidene)anilines were produced mixtures of 2,1-benzisoxazoles and 3-anilino-2-phenyl-2H-indazoles.
在甲醇中存在铟和碘的情况下,将2-硝基芳基醛,酮和亚胺以良好的产率还原环化为2,1-苯并恶唑。下一个类似的条件下,ñ - (2-硝基亚苄基)苯胺被生产的2,1-苯并异恶唑和3-苯胺基-2-苯基-2-混合物ħ -indazoles。