Lewis Acid-Catalyzed Ring-Opening Cross-Coupling Reaction of <i>gem</i>-Difluorinated Cyclopropanes Enabled by C–F Bond Activation
作者:Xiuli Wu、Yaxin Zeng、Zhong-Tao Jiang、Yulei Zhu、Linshen Xie、Ying Xia
DOI:10.1021/acs.orglett.2c03544
日期:2022.11.18
organic synthesis due to their high reactivity. Herein, we report a Lewis acid-catalyzed cross-coupling reaction of mono- and disubstituted gem-difluorinated cyclopropanes with nucleophiles. The formation of a fluoroallyl cation species triggered via the Lewis acid-assisted activation of the C–F bond is proposed in this transformation. The cation species is then trapped by the nucleophiles, including
宝石-二氟化环丙烷由于其高反应性而在有机合成中引起了广泛的研究兴趣。在此,我们报告了路易斯酸催化的单取代和双取代宝石二氟化环丙烷与亲核试剂的交叉偶联反应。在这种转化中提出了通过路易斯酸辅助激活 C-F 键触发的氟代烯丙基阳离子物种的形成。然后阳离子物质被亲核试剂捕获,包括富电子芳烃和烯丙基硅烷,以高产率提供一系列氟代烯丙基产物。该反应提供了另一种使用偕二氟化环丙烷作为氟代烯丙基替代物的模式。