Silver

Sigma-Aldrich offers a variety of high quality silver catalysts for transition-metal catalysis in organic synthesis. Silver catalysis is commonly used due to the high oxidation power of silver complexes and high oxidation potentials, additionally serving as silver activators enhancing the electronegativity of other catalysts, such as gold. Organic and inorganic synthesis benefits from the stoichiometric oxidation potential of silver compounds. Homogeneous silver-catalyzed organic transformations highlight the unique redox chemistry of silver, capable of catalyzing reactions with high stereo- and regioselectivity. Silver catalysts mediate both efficient intermolecular as well as intramolecular bond formations. Sigma-Aldrich additionally offers silver salts, commonly utilized as Lewis acids in organic synthesis.

Heterogeneous processes involving silver catalysis include NOx reduction and catalytic oxidation of CO to CO2. Silver(I) salts can be used in several silver-catalyzed nucleophilic addition reactions and organic transformations. The high oxidation potentials associated with Ag ions allows silver catalysis, complexes, and ligands to enjoy significant potential in chemical synthesis.

References:
Li & He, 2006, Recent Advances in Silver-Catalyzed Nitrene, Carbene, and Silylene-Transfer Reactions, Microreview.

Silver Additives

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Image

Description

Molecular Formula

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668001 Silver bis(trifluoromethanesulfonyl)imide 97% C2AgF6NO4S2
227730 Silver hexafluoroantimonate(V) 98% AgF6Sb
227722 Silver hexafluorophosphate 98% AgF6P
550256 Silver methanesulfonate CH3AgO3S
674583 Silver perchlorate anhydrous, 97% AgClO4
208361 Silver tetrafluoroborate 98% AgBF4
176427 Silver p-toluenesulfonate ≥99% C7H7AgO3S
T62405 Silver trifluoroacetate 98% C2AgF3O2
176435 Silver trifluoromethanesulfonate ≥99% CAgF3O3S

Silver Complexes

Product #

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Description

Molecular Formula

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736643 2,6-Bis[(di-tert-butylphosphino)methyl]pyridine silver(I) tetrafluoroborate 97% C23H43AgBF4NP2
348198 (1,5-Cyclooctadiene)(hexafluoroacetylacetonato)silver(I) 99% C13H13AgF6O2
379166 Potassium dicyanoargentate C2AgKN2
204374 Silver acetate 99.99% trace metals basis C2H3AgO2
216674 Silver acetate ReagentPlus®, 99% C2H3AgO2
668001 Silver bis(trifluoromethanesulfonyl)imide 97% C2AgF6NO4S2
438448 Silver carbonate 99.999% trace metals basis CAg2O3
179647 Silver carbonate 99% CAg2O3
85150 Silver carbonate purum p.a., ≥99.0% (AT) CAg2O3
204382 Silver chloride 99.999% trace metals basis AgCl
227927 Silver chloride ReagentPlus®, 99% AgCl
D93503 Silver diethyldithiocarbamate ACS reagent, 99% C5H10AgNS2
382280   Silver-exchanged zeolite granular, +20 mesh  
382299   Silver-exchanged zeolite pellets, 1.6 mm  
227730 Silver hexafluoroantimonate(V) 98% AgF6Sb
450219 Silver hexafluorophosphate 99.99% trace metals basis AgF6P
227722 Silver hexafluorophosphate 98% AgF6P
550256 Silver methanesulfonate CH3AgO3S
209139 Silver nitrate ACS reagent, ≥99.0% AgNO3
248762 Silver nitrate on silica gel extent of labeling: ~10 wt. % loading, +230 mesh AgNO3
226831 Silver(I) oxide ≥99.99% trace metals basis Ag2O
221163 Silver(I) oxide ReagentPlus®, 99% Ag2O
10229 Silver sulfate puriss., ≥99% Ag2O4S
204412 Silver sulfate 99.999% trace metals basis Ag2O4S
497266 Silver sulfate ≥99.99% Ag2O4S
225673 Silver sulfate ACS reagent, 99% Ag2O4S
31066 Silver sulfate-Sulfuric acid solution for COD determination according to DIN 38409, part 41, solution (volumetric)  
483052 Silver tetrafluoroborate ≥99.99% trace metals basis AgBF4
208361 Silver tetrafluoroborate 98% AgBF4
176427 Silver p-toluenesulfonate ≥99% C7H7AgO3S
85325 Silver trifluoromethanesulfonate purum, ≥98.0% (Ag) CAgF3O3S
483346 Silver trifluoromethanesulfonate ≥99.95% trace metals basis CAgF3O3S
176435 Silver trifluoromethanesulfonate ≥99% CAgF3O3S
377163 Tetrakis(acetonitrile)silver(I) tetrafluoroborate 98% C8H14AgBF4N4
L511854 Tris(1,1,1-trifluoromethanesulfonyl)methyl silver(I) AldrichCPR C4AgF9O6S3