Asymmetric Synthesis of Isoindolones by Chiral Cyclopentadienyl-Rhodium(III)-Catalyzed CH Functionalizations
作者:Baihua Ye、Nicolai Cramer
DOI:10.1002/anie.201404895
日期:2014.7.21
Directed Cp*RhIII‐catalyzed carbon–hydrogen (CH) bond functionalizations have evolved as a powerful strategy for the construction of heterocycles. Despite their high value, the development of related asymmetric reactions is largely lagging behind due to a limited availability of robust and tunable chiral cyclopentadienyl ligands. Rhodium complexes comprising a chiral Cp ligand with an atropchiral
定向Cp * Rh III催化的碳氢(CH)键功能化已发展成为构建杂环的有力策略。尽管它们具有很高的价值,但由于健壮且可调的手性环戊二烯基配体的可用性有限,相关的不对称反应的发展仍大大滞后。包含具有手性联芳基骨架的手性Cp配体的铑配合物可在温和条件下由芳基异羟肟酸酯和弱碳原子供体/受体重氮衍生物作为单碳组分不对称合成异吲哚酮。该络合物以高的双面选择性引导底物,从而以良好的产率和优异的对映选择性产生手性异吲哚酮。