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    • Cesium carbonate

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    Catalog Number
    ACM534178
    CAS Number
    534-17-8
    Product Name
    Cesium carbonate
    Structure
    Category
    Electrolytes; Substrates and Electrode Materials
    Synonyms
    Carbonic acid dicesium
    Description
    Caesium carbonate or cesium carbonate is a white crystalline solid compound. Caesium carbonate has a high solubility in polar solvents such as water, alcohol and DMF. Its solubility is higher in organic solvents compared to other carbonates like potassium and sodium carbonates, although it remains quite insoluble in other organic solvents such as toluene, p-xylene, and chlorobenzene. This compound is used in organic synthesis as a base. It also appears to have applications in energy conversion.
    IUPAC Name
    Dicesium;carbonate
    Molecular Weight
    325.82
    Molecular Formula
    CCs2O3
    Canonical SMILES
    C(=O)([O-])[O-].[Cs+].[Cs+]
    InChI
    InChI=1S/CH₂O3.2Cs/c2-1(3)4;/h(H2,2,3,4);/q;2*+1/p-2
    InChI Key
    FJDQFPXHSGXQBY-UHFFFAOYSA-L
    Melting Point
    610 °C
    Flash Point
    169.8ºC
    Purity
    99%+
    Density
    4.072 g/mL at 25 °C (lit.)
    Solubility
    Very soluble in water
    Appearance
    White powder
    Application
    Cesium carbonate (Cs2CO3) is used in the beer-brewing industry to make the "head" of beer foamier. It is also used in glassmaking and to enhance the taste of mineral water.
    Storage
    Inert atmosphere,Room Temperature
    Assay
    99.995% trace metals basis
    Complexity
    18.8
    Covalently-Bonded Unit Count
    3
    EC Number
    208-591-9
    Exact Mass
    325.7956478
    Formal Charge
    0
    Heavy Atom Count
    6
    Log P
    -2.44700
    MDL Number
    MFCD00010957
    MeSH Entry Terms
    cesium carbonate
    Monoisotopic Mass
    325.7956478
    Odor
    Odorless
    Packaging
    10, 50 g in poly bottle
    Rotatable Bond Count
    0
    Stability
    Stable. Very deliquescent. Incompatible with strong oxidizing agents, strong acids.
    Storage Conditions
    Store at RT.
    Topological Polar Surface Area
    63.2 Ų
    UNII
    QQI20A14P4
    WGK Germany
    2
    MSDS
    Download MSDS
    COA
    Download COA
    Spec Sheet
    Download Spec Sheet
    Case Study

    Cesium Carbonate Promoted Cascade Reaction Involving DMF

    Zhang, Qianqian, et al. Organic Chemistry Frontiers, 2018, 5, 1, 80-87.

    Cesium carbonate (Cs2CO3)-mediated cascade reaction can be used to synthesize dihydropyrrozinyl[3,2-b ]indol-10-one. The reaction mechanism involves sequential nucleophilic attacks of DMF with the enolate and pyrrolyl nitrogen, followed by the formation of transition metal-free C-N bonds.
    Cesium carbonate-mediated cascade reaction procedure
    · A sealed tube was charged with 2-(2-bromophenyl)-1-(N-tosyl-2-pyrrolyl)propan-1-one (1.0 mmol), Cs2CO3 (2.0 mmol) and DMF (10 mL).
    · The reaction system was recharged with nitrogen three times. The reaction mixture was heated at 120 °C for 24 h and cooled.
    · The mixture was partitioned between EtOAc (20 mL) and H2O (40 mL). The separated aqueous phase was extracted with EtOAc (3 × 20 mL).
    · The combined organic extracts were washed with brine (100 mL), then dried (Na2SO4), filtered, and evaporated in vacuo. The residue was purified by column chromatography on silica gel (petroleum ether/EtOAc) to afford the products.

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