Cyclodextrin and phosphorus(III): a versatile combination for coordination chemistry and catalysis

Area of Science:

• Supramolecular Chemistry
• Organometallic Chemistry
• Homogeneous Catalysis

Background:

• Cyclodextrins are versatile host molecules with a hydrophobic cavity and hydrophilic exterior.
• Phosphorus(III) compounds are important ligands in coordination chemistry and catalysis.
• Efficient methods for functionalizing cyclodextrins enable the creation of novel ligand architectures.

Purpose of the Study:

• To review methods for covalently linking phosphorus(III) donor atoms to cyclodextrin scaffolds.
• To highlight the role of cyclodextrin-based ligands in homogeneous catalysis.
• To discuss the influence of the cyclodextrin receptor on metal coordination and catalytic activity.

Main Methods:

• Review of literature on cyclodextrin functionalization.
• Analysis of synthetic strategies for P(III)-cyclodextrin conjugates.
• Examination of coordination chemistry and catalytic applications of these ligands.

Main Results:

• Various synthetic routes exist to covalently attach P(III) moieties to cyclodextrins.
• Cyclodextrin-based P(III) ligands can act as both first and second coordination sphere ligands.
• These ligands exhibit significant influence on the catalytic performance of transition metal complexes.

Conclusions:

• The covalent association of P(III) donors with cyclodextrin cavities yields versatile ligands for catalysis.
• The cyclodextrin receptor modulates the coordination environment and catalytic properties of metal centers.
• This field offers promising avenues for designing advanced homogeneous catalysts.