Silver Carbonate – What Is It?

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Silver Carbonate: What Is It?

It is a transition metal carbonate with the formula Ag2CO3 and is widely used as a chemical intermediate in organic reactions. It is also used in the manufacturing of fireworks and as a pigment for photography.

Silver Carbonate Can Be Precipitated From Sodium Carbonate

When you combine silver nitrate with another of the transition metal carbonates, it will precipitate out and you can use it as an oxidant in the Fetizon reaction.

Fetizon’s Reagent is Made With Silver Carbonate And Celite

When Fetizon combines silver carbonate with an alkaline carbonate, such as celite, a white mass forms that, when washed, turns yellow as the soluble salts separate. This reagent is used to oxidise primary and secondary alcohols, yielding ketones and aldehydes, respectively.

General Reactions With Silver Carbonate

A wide range of organic transformations involving Ag2CO3 have been reported, including carboxylations, halogenations, C-H bond functionalizations, and cycloadditions. For example, Zou and co-workers reported a direct C(sp2)-H phosphorylation of indoles in the presence of Mg(NO3)2 leading to phosphoindoles (Scheme 45) [62].

A number of other organic transformations have been catalyzed by Ag2CO3 in recent years, including C-C/N-H oxidative cross-coupling and cyclization reactions, which produce useful intermediates such as furans and pyrroles. Additionally, Ag2CO3 is frequently used in palladium-catalyzed C-H activations in organic solvents with acidic protons, as an oxidant for single-electron transfer (SET) processes, and as an inorganic base for Wittig reactions. These reactions offer valuable synthetic routes to access potentially bioactive phosphorus-containing heterocycles.