Copper-Catalyzed Multi-Component Reactions: Synthesis of Nitrogen-Containing Polycyclic Compounds

Description

A copper-catalyzed direct synthesis of 2-(aminomethyl)indoles by catalytic domino reaction including multi-component coupling was developed, and is the first example of a three-component indole formation without producing salts as a byproduct. Based on this reaction, a copper-catalyzed synthesis of 3-(aminomethyl)isoquinoline was accomplished which represents an unprecedented isoquinoline synthesis through a four-component coupling reaction. Following these results, extensive application studies using one-pot palladium-, acid-, or base-promoted cyclization revealed that indole- or isoquinoline-fused polycyclic compounds can be readily synthesized through multi-component reactions. As the concept of Green Chemistry becomes ever more important, these findings may provide efficient and atom-economical approaches to the diversity-oriented synthesis of bioactive compounds containing a complex structure. This could lead to development of promising drug leads with structural complexity. The work of this thesis will go on to inspire the synthetic research of many readers. Front Matter....Pages i-xv Introduction....Pages 1-6 Front Matter....Pages 7-7 Construction of 2-(Aminomethyl)indoles Through Copper-Catalyzed Domino Three-Component Coupling and Cyclization....Pages 9-45 Facile Synthesis of 1,2,3,4-Tetrahydro-β-Carbolines by One-Pot Domino Three-Component Indole Formation and Nucleophilic Cyclization....Pages 47-61 Concise Synthesis of Indole-Fused 1,4-Diazepines through Copper(I)-Catalyzed Domino Three-Component Coupling-Cyclization- N -Arylation under Microwave Irradiation....Pages 63-75 Front Matter....Pages 77-77 Facile Synthesis of 3-(Aminomethyl)isoquinoline by Copper-Catalyzed Domino Four-Component Coupling and Cyclization....Pages 79-88 Rapid Access to 3-(Aminomethyl)isoquinoline-Fused Polycyclic Compounds by Copper-Catalyzed Four Component Coupling, Cascade Cyclization, and Oxidation....Pages 89-100 Conclusions....Pages 101-102