Construction of highly functional α-amino nitriles via a novel multicomponent tandem organocatalytic reaction: a facile access to α-methylene γ-lactams
The first tertiary amine-catalyzed multicomponent tandem Strecker–allylic-alkylation (SAA) reaction has been developed, which provides a facileaccess to functionalized α-amino nitriles, which could be readily converted into α-methylene-γ-butyrolactams.
A Novel Decyanogenative Coupling of α-Cyanoimines Mediated by Samarium. A Facile Route to α-Diketimines
作者:Ashim J. Thakur、Dipak Prajapati、Jagir S. Sandhu
DOI:10.1246/cl.2004.102
日期:2004.2
Conversion of α-cyanoimines 1 into α-diketimines 2 has been achieved successfully by using samarium diiodide in dry tetrahydrofuran in high yields without formation of anilinoanil 3, 1,2-diamines 4 or anilides 5.
Rh(III) catalysts have played increasingly important roles in the activation of C–H bonds to build heterocyclic scaffolds. However, there are few reports on the more challenging synthesis of pharmaceutically important 2H-isoindoles and fused 2H-isoindoles. The process reported herein is an effective strategy to produce 2H-isoindole or fused 2H-isoindole derivatives via a Rh(III)-catalyzed transformation