20959
Cesium carbonate
puriss. p.a., ≥99.0%
동의어(들):
Carbonic acid dicesium
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제품정보 (DICE 배송 시 비용 별도)
Linear Formula:
Cs2CO3
CAS 번호:
Molecular Weight:
325.82
UNSPSC Code:
12352301
NACRES:
NA.22
PubChem Substance ID:
EC Number:
208-591-9
Beilstein/REAXYS Number:
4546405
MDL number:
Assay:
≥99.0% (T), ≥99.0%
grade
puriss. p.a.
Quality Level
assay
≥99.0% (T), ≥99.0%
impurities
≤0.002% total nitrogen (N)
mp
610 °C (dec.) (lit.)
anion traces
chloride (Cl-): ≤20 mg/kg, sulfate (SO42-): ≤50 mg/kg
cation traces
Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg
SMILES string
[Cs+].[Cs+].[O-]C([O-])=O
InChI
1S/CH2O3.2Cs/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
InChI key
FJDQFPXHSGXQBY-UHFFFAOYSA-L
General description
Cesium carbonate is an inorganic base generally used in C, N, O-arylation and alkylation reactions. It is also used in six-membered annulation, cross-coupling, intramolecular and intermolecular cyclizations, aza-Henry reaction, Horner-Emmons cyclization, and cycloaddition reactions.
Application
Promotes the efficient O-alkylation of alcohols to form mixed alkyl carbonates.
Cesium carbonate, an alkali metal carbonate, is a commonly used inorganic base in organic reactions.
Synthetic applications:
Synthetic applications:
- As a catalyst to synthesize quinazoline-2,4(1H,3H)-diones from substituted 2-aminobenzonitriles and carbon dioxide.
- As a base to synthesize cyclic carbonates using halo- or tosyl-alcohols and carbon dioxide in the absence of any transition metal or organo catalyst.
- In combination with alkyl halide and acetonitrile, it forms an effective system for the alkylation method of phenols.
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Repr. 2 - STOT RE 2 Oral
target_organs
Kidney,Adrenal gland,Testes
저장 등급
13 - Non Combustible Solids
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
Cesium carbonate catalyzed efficient synthesis of quinazoline-2, 4 (1 H, 3 H)-diones using carbon dioxide and 2-aminobenzonitriles.
Patil Y P, et al.
Green Chemistry Letters and Reviews, 1(2), 127-132 (2008)
Synthesis of cyclic carbonates with carbon dioxide and cesium carbonate.
Reithofer M R, et al.
Green Chemistry, 15(8), 2086-2090 (2013)
Facile synthesis of alkyl phenyl ethers using cesium carbonate.
Lee J C, et al.
Synthetic Communications, 25(9), 1367-1370 (1995)
국제 무역 품목 번호
| SKU | GTIN |
|---|---|
| 20959-250G | 04061838770790 |
| 20959-50G | 04061838770806 |