Cesium carbonate CAS 534-17-8
Cesium carbonate is an inorganic compound. It is a white solid at room temperature and pressure. It is very soluble in water and absorbs moisture quickly when placed in the air. The aqueous solution of cesium carbonate is strongly alkaline and can react with acid to produce the corresponding cesium salt and water, and release carbon dioxide. Cesium carbonate is easy to transform and can be used as a precursor of other cesium salts. It is widely used in cesium salt varieties.
|
Cs₂CO₃ |
99.9%min |
|
L |
0.0005%max |
|
Na |
0.001%max |
|
K |
0.005%max |
|
Rb |
0.02%max |
|
Al |
0.001%max |
|
Ca |
0.003%max |
|
Fe |
0.0003%max |
|
Mg |
0.0005%max |
|
SiO₂ |
0.008%max |
|
Cl- |
0.01%max |
|
so₄² |
0.01%max |
|
H₂O |
1%max |
1. Organic synthesis catalysts
1) Cesium carbonate C/N/O-arylation and alkylation reactions: Cesium carbonate acts as a strong base to promote substitution reactions of aromatic rings or heteroatoms, such as increasing the yield in cross-coupling reactions36.
2) Cyclization reactions: Cesium carbonate is used for six-membered cyclization, intramolecular or intermolecular cyclization, and Horner-Emmons cyclization reactions to simplify the construction of complex molecules39.
3) Synthesis of quinazolinediones and cyclic carbonates: Cesium carbonate catalyzes the reaction of 2-aminobenzonitrile with carbon dioxide to produce quinazolinediones, or synthesizes cyclic carbonates through halogenated alcohols and carbon dioxide36.
2. Materials science applications
1) Electronic devices: Cesium carbonate is used as an electron selective layer in graphene quantum dots to improve the efficiency of polymer solar cells.
2) Preparation of nanomaterials: Cesium carbonate participates in the synthesis of phosphorescent materials and metal organic frameworks (MOFs) to optimize material properties.
3. Other applications
1) Synthesis of drug intermediates: Cesium carbonate is used in key steps of drug chemistry such as alkylation of phenols and preparation of phosphate esters.
2) Environmentally friendly reactions: Cesium carbonate achieves efficient conversion and reduces pollution without transition metals or organic catalysts.
25kg/drum
Cesium carbonate CAS 534-17-8
Cesium carbonate CAS 534-17-8
