Remote Allylation of Unactivated C(sp<sup>3</sup>)–H Bonds Triggered by Photogenerated Amidyl Radicals
作者:Bin Xu、Uttam K. Tambar
DOI:10.1021/acscatal.9b00563
日期:2019.5.3
The allylationreaction is a highly versatile transformation in chemical synthesis. While many elegant direct C(sp2)–H allylationreactions have been developed, the direct allylation of unactivated C(sp3)–H bonds is underdeveloped. By applying photoredox catalysis and a [1,5]-HAT process, herein we report a direct allylation of unactivated C(sp3)–H bonds. This photocatalyzed transformation is tolerant
Bodrikov,I.V. et al., Journal of Organic Chemistry USSR (English Translation), 1976, vol. 12, p. 1825 - 1831
作者:Bodrikov,I.V. et al.
DOI:——
日期:——
Synthesis of Fluoromethyl‐Substituted Cyclopropanes by Electrophilic Cyclization of Homoallylic Boronate Intermediates
作者:Natsuki Oyama、Hajime Ito
DOI:10.1002/adsc.202300529
日期:2023.10.13
The electrophiliccyclization via the boronate complex between various homoallylic boronates and Selectfluor® is reported. This reaction provides a fluoromethylated cyclopropane ring that was difficult to synthesize by previous methods. The use of phenyl lithium, which activates the homoallylic boronate, is important for the reaction. The intermediate boronate species in this reaction was observed
据报道,各种同烯丙基硼酸酯和 Selectflu® 之间通过硼酸酯络合物进行亲电环化。该反应提供了以前的方法难以合成的氟甲基化环丙烷环。苯基锂的使用对反应很重要,它可以活化高烯丙基硼酸酯。通过11 B 1 H} NMR 实验观察到该反应中的中间体硼酸盐物质。我们还演示了构建模块的合成,包括用于生物活性化合物的氟甲基取代的环丙烷。