Dual-Metal <i>N</i>-Heterocyclic Carbene Complex (M = Au and Pd)-Functionalized UiO-67 MOF for Alkyne Hydration–Suzuki Coupling Tandem Reaction
作者:Ying Dong、Wen-Han Li、Yu-Bin Dong
DOI:10.1021/acs.joc.0c02641
日期:2021.1.15
Metal N-heterocyclic carbene complexes (NHC-M) have been recognized as an important class of organometallic catalysts. Herein, we demonstrate that different NHC-M (M = Au and Pd) species can be simultaneously introduced into a single metal organic framework (MOF) by direct assembly of NHC-M-decorated ligands and metal ions under solvothermal conditions. The obtained UiO-67-Au/Pd-NHBC MOF with different
The Pd-cataylsed direct ortho-C(sp2)–H fluorination of aromatic ketones has been developed for the first time. The reaction features good regioselectivity and simple operations, constituting an alternative shortcut to access fluorinated ketones. A concise synthesis of anacetrapib has also been achieved by using late-stage C–H fluorination as a key step.
an alternative one-pot methodology but also allows chemists to start from different raw materials (2-fluoroacetophenone) other than the traditional ortho-hydroxyacetophenone for maintaining the regioselectivity in the cyclization step. We further demonstrated the utility of our protocol by successfully extending the application to the synthesis of two natural products (Halenic acids A and B), various
色酮-2-羧酸酯支架正在成为药物化学中重要的药效团,具有多种生物学特性。我们开发了一种简单的一锅法,通过串联 C-C 和 C-O 键的形成,将 2-氟苯乙酮直接一步转化为色酮-2-羧酸酯支架。先前报道的大多数药物化学合成方案主要仅使用一种程序,该程序遵循需要从“2-羟基苯乙酮”开始的两步策略。我们的方法不仅可以作为替代的一锅法,而且还允许化学家从传统邻位苯乙酮以外的不同原材料(2-氟苯乙酮)开始-羟基苯乙酮用于维持环化步骤中的区域选择性。我们通过成功地将应用扩展到两种天然产物(哈伦酸 A 和 B)、各种双色酮包括药物分子(DSCG、色甘酸)和有效的抗阿尔茨海默病化合物(F -色甘酸)。由于有机会在色酮合成中使用新原材料,因此该方法可以作为寻找具有多种修饰的新生物活性色酮的有前途的替代工具。
Thompson, Neil J.; Goodby, John W.; Toyne, Kenneth J., Molecular Crystals and Liquid Crystals Science and Technology, Section A: Molecular Crystals and Liquid Crystals, 1992, vol. 214, p. 81 - 96
作者:Thompson, Neil J.、Goodby, John W.、Toyne, Kenneth J.