作者:You, Hui、Liu, Daming、Pan, Mengni、Shen, Yue、Li, Yang、Li, Wanfang
DOI:10.1055/a-2352-4950
日期:——
We herein developed a base-promoted cyclization reaction between N-acyl benzotriazoles and p-toluenesulfonylmethyl isocyanide (TosMIC) to afford 4,5-disubstituted oxazoles. In the presence of 3 equiv of K3PO4, the two readily available starting materials reacted in N,N-dimethylformamide at 80 °C to give 28 examples of 4-tosyl-5-aryl, -alkyl, or -alkenyl-substituted oxazoles in moderate to high yields
我们在此开发了 N-酰基苯并三唑和对甲苯磺酰甲基异氰化物 (TosMIC) 之间的碱促进环化反应,得到 4,5-二取代恶唑。在 3 当量的 K 3 PO 4 存在下,两种容易获得的起始原料在 N,N-二甲基甲酰胺中于 80 °C 反应,得到 28 个 4-甲苯磺酰基- 5-芳基、-烷基或-烯基取代的恶唑,产率中等至高。