Visible-Light-Induced Intermolecular Trifluoromethyl Heteroarylation of Vinyl Ethers for the Syntheses of β-Trifluoromethyl Alkyl Thiochromones
作者:Shen Zhao、Pingliang Zhu、Baolong Xu、Shaowen Ling、Lizhi Zhang、Feng-Gang Sun
DOI:10.1021/acs.joc.3c00842
日期:2023.7.7
transition-metal-free three-component trifluoromethyl heteroarylation of vinyl ethers under visible light irradiation. This protocol proceeded through a radical addition/cyclization sequence which hinged on the intrinsic nucleo/electrophilic reactivity of both the radicals, alkene, and alkynones, allowing β-trifluoromethyl alkyl thiochromones furnished with high efficiency and excellent functional group
在此,我们报道了可见光照射下乙烯基醚的无过渡金属三组分三氟甲基杂芳基化。该方案通过自由基加成/环化序列进行,该序列取决于自由基、烯烃和炔酮的固有核/亲电子反应性,使得β-三氟甲基烷基硫色酮具有高效率和优异的官能团耐受性。通过该过程,三个不同的化学键包括C(sp 2 )–C(sp 3 )、C(sp 3 )–C(sp 3 )和C(sp 2 )–S已在单个化学键中连续形成。锅。