Silver Complexes in Organic Transformations

Catalytic exploration of NHC–Ag(i)HMDS complexes for the hydroboration and hydrosilylation of carbonyl compounds

“…[20][21][22][23][24] By exploiting the tuneability of NHC ligands, Takaki and co-workers developed a potent silver(I)-NHC pre-catalyst [AgCl(IMes)] (IMes = 1,3-bis(2,4,6-trimethylphenyl)-1,3-dihydro-2H-imidazol-2-ylidene) that allowed β-selective hydroboration of alkynes and allenes to give direct access to a diverse range of organoboron compounds (Scheme 1c). 25 While coinage metal NHC complexes have a rich history in synthetic catalytic reactions, 12,[26][27][28][29][30][31][32][33] the use of an anionic amido ligand in these systems is scarce. Our group recently reported the phosphine stabilised silver(I) amide precatalyst [Ag(PCy 3 )(HMDS)] (HMDS = hexamethyldisilazane) which was successful in the hydroboration and hydrosilylation of a range of aldehydes and ketones.…”

Silver(I)–Organic Frameworks Showing Remarkable Thermo-, Solvato- And Vapochromic Phosphorescence As Well As Reversible Solvent-Driven 3D-to-0D Transformations

“…Recently, an increased focus has been placed on Ag­(I)-based LMOFs because of their huge potential. The Ag-LMOFs are expected to combine good MOF-specific features and remarkable properties inherent in Ag­(I) compounds, e.g., intriguing luminescence, biocompatibility, antimicrobial and catalytic activities, etc. Given these facts as well as their low toxicity and solubility, Ag-LMOFs can be regarded as promising materials for the design of smart luminescent sensors, high-performance OLED devices, and advanced photocatalysts.…”

Silver(I)-Catalyzed Reductive Cross-Coupling of Aldehydes to Structurally Diverse Cyclic and Acyclic Ethers

“…Since the beginning of the twenty-first century, silver catalysis has been emerging as an active field in the frontiers of organic synthesis because of the unique reactivity of silver catalysts and because such catalysts can drastically enhance the rate and selectivity of reactions. − In recent years, silver hydride (Ag–H) has been developed as a unique species to achieve efficient transformations. Li et al − reported the application of Ag–H sources for the reduction of aldehydes to afford alcohols.…”