Nitrosylsulfuric acid as a tandem reagent in the synthesis of 3,5-diarylisoxazoles from 1,2-diarylcyclopropanes
作者:O. B. Bondarenko、A. I. Komarov、G. L. Karetnikov、S. N. Nikolaeva、N. V. Zyk
DOI:10.1007/s11172-019-2540-1
日期:2019.6
It was demonstrated that nitrosylsulfuric acid can be successfully used as a tandem nitrosating and oxidizing agent in the synthesis of 3,5-diarylisoxazoles from 1,2-diarylcyclopropanes. The reaction proceeds highly regioselectively in the case of symmetric diarylcyclopropanes. The mixtures of regioisomeric 3,5-diarylisoxazoles were obtained from non-symmetric 1,2-diarylcyclopropanes.
结果表明,亚硝基硫酸可以成功地用作串联亚硝化剂和氧化剂,用于从1,2-二芳基环丙烷合成3,5-二芳基异噁唑。在反应过程中,对于对称二芳基环丙烷,反应具有高度的位选择性。从非对称1,2-二芳基环丙烷中获得了位异构体3,5-二芳基异噁唑的混合物。