作者:Xing, Yidan、Yu, Rongrong、Jiao, Mingdong、Wang, Ting、Fang, Xianjie
DOI:10.1007/s11426-024-2182-9
日期:——
remote from the “initiation” position. However, a similar strategy for the construction of quaternary carbon centers is still underdeveloped and only a limited number of reports exist. Herein, we report a nickel-catalyzed migratory hydrocyanation of unconjugated dienes to construct remote cyano-substituted quaternary carbon centers. This transformation features exceptional regioselectivity, mild reaction
过渡金属催化的迁移功能化已成为构建远离“起始”位置的 C-C 键的可靠方案。然而,类似的第四纪碳中心建设策略仍不完善,且报道数量有限。在此,我们报道了镍催化非共轭二烯的迁移氢氰化,以构建远程氰基取代的季碳中心。该转化具有卓越的区域选择性、温和的反应条件、广泛的底物范围和高产率。一系列产物衍生化凸显了该方法的合成效用,并且该转化的潜力已扩展到合成TRPV1拮抗剂和克布拉查明全合成的关键中间体。密度泛函理论(DFT)研究表明,特定的催化袋在氰基取代的季碳中心的选择性形成中发挥着重要作用。