Amide-based ligand, heterobimetallic

Heterobimetallic Catalysis with Amide-Based Ligand 3.1 Anti-Selective Catalytic Asymmetric Nitroaldol Reaction... 

Fig. 10 Implementation of amide-based ligand as a platform for a heterobimetallic complex...

We designed the amide-based ligand 3a bearing two aryloxide moieties to capture two distinct metal cations for the selective activation of the aldehyde and the nitroalkane (Fig. 11) [39]. A heterobimetallic catalyst prepared from ligand 3a,... 

The heterobimetallic catalytic system using the amide-based ligand as a platform was extended to the diastereo- and enantioselective nitro-Mannich-type reaction. In an initial attempt using the heterogeneous heterobimetallic Nd/Na for the reaction of benzaldehyde-derived N-Boc imine and nitroethane exhibited poor stereoselectivity, likely because the coordination mode of N-Boc imine is different... 

In this chapter, recent achievements in asymmetric cooperative catalysis exploiting the power of multimetallic catalysts are described. The three types of multidentate ligands, Schiff base ligands, amide-based ligands, and sugar-derived ligands, serve as a suitable platform for the construction of homobimetallic, heterobimetallic, and... 

Lanthanide amides Ln[N(SiMe3)2]3()tt-Cl)Li(THF)3 or Ln[N(SiMe3)2]3 have been reported to be efficient catalysts for amidation of aldehydes with amines under mild conditions without the use of peroxide and base. But this kind of catalyst is not suitable for the amidation of aldehydes with secondary cycUc amines. Heterobimetallic lanthanide/alkali metal complexes stabilized by phenolate ligand are new classes of bimetallic catalysts for amidation of... 

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