441902
Cesium carbonate
ReagentPlus®, 99%
Synonym(s):
Carbonic acid dicesium
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About This Item
Linear Formula:
Cs2CO3
CAS Number:
Molecular Weight:
325.82
Beilstein:
4546405
EC Number:
MDL number:
UNSPSC Code:
12352301
PubChem Substance ID:
NACRES:
NA.22
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Quality Level
product line
ReagentPlus®
Assay
99%
form
powder and chunks
pH range
10-13
mp
610 °C (dec.) (lit.)
solubility
distilled water: soluble
density
4.072 g/cm3 at 20 °C
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
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General description
Cesium carbonate is a powerful inorganic base widely used in organic synthesis. It is a potential chemoselective catalyst for the reduction of aldehydes and ketones to alcohols. It is employed as base for the Heck coupling reaction of 4-trifluoromethyl-1-chlorobenzene and aryl chlorides.
Application
Cesium carbonate can be used as a base in C-C and C-N cross-coupling reactions such as Suzuki−Miyaura, Heck, and Buchwald-Hartwig amination reactions. It is also used as a base in alkylation reactions.
Promotes the efficient O-alkylation of alcohols to form mixed alkyl carbonates.
Legal Information
ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Dam. 1 - Repr. 2 - STOT RE 2 Oral
Target Organs
Kidney,Adrenal gland,Testes
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 2
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Mengdi Zhao et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 20(30), 9259-9262 (2014-07-06)
Cs2CO3 has been found to be an efficient and chemoselective catalyst for reduction of aldehydes and ketones to alcohols with one equivalent of Ph2SiH2 as the reductant under solvent-free conditions. Most of the aldehydes employed can be effectively hydrosilated quantitatively
Cesium carbonate (CS2CO3)
Lehmann F
Synlett, 2004(13), 2447-2448 (2004)
Pd-SAPO-31, an efficient, heterogeneous catalyst for Heck reactions of aryl chlorides.
Srivastava R, et al.
Tetrahedron Letters, 44(18), 3649-3651 (2003)
Single and double Suzuki- Miyaura couplings with symmetric dihalobenzenes
Sinclair DJ and Sherburn MS
The Journal of Organic Chemistry, 70(9), 3730-3733 (2005)
Cesium carbonate: a powerful inorganic base in organic synthesis.
Flessner T and Doye S.
J. Prakt. Chem., 341(2), 186-190 (1999)
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