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441902

Sigma-Aldrich

Carbonato de césio

ReagentPlus®, 99%

Sinônimo(s):

Ácido carbônico dicésico

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About This Item

Fórmula linear:
Cs2CO3
Número CAS:
534-17-8
Peso molecular:
325.82
Beilstein:
4546405
Número CE:
208-591-9
Número MDL:
MFCD00010957
Código UNSPSC:
12352301
ID de substância PubChem:
24867711
NACRES:
NA.22

Nível de qualidade

200

linha de produto

ReagentPlus®

Ensaio

99%

forma

powder and chunks

pf

610 °C (dec.) (lit.)

cadeia de caracteres SMILES

[Cs+].[Cs+].[O-]C([O-])=O

InChI

1S/CH2O3.2Cs/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2

chave InChI

FJDQFPXHSGXQBY-UHFFFAOYSA-L

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Descrição geral

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.

Aplicação

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.
Promove a O-alquilação eficiente de alcoóis para formar alquil carbonatos mistos.

Informações legais

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictogramas

Health hazardCorrosion
GHS08,GHS05

Palavra indicadora

Danger

Frases de perigo

H318,H361f,H373

Classificações de perigo

Eye Dam. 1 - Repr. 2 - STOT RE 2 Oral

Órgãos-alvo

Kidney,Adrenal gland,Testes

Código de classe de armazenamento

13 - Non Combustible Solids

Classe de risco de água (WGK)

WGK 2

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

dust mask type N95 (US), Eyeshields, Gloves

Escolha uma das versões mais recentes:

Certificados de análise (COA)

Lot/Batch Number
BCCG8981
BCCG0549
BCCF8984
BCCF7477
BCCF0257

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Cesium carbonate (CS2CO3)
Lehmann F
Synlett, 2004(13), 2447-2448 (2004)
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
A Zapf et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 7(13), 2908-2915 (2001-08-07)
A detailed investigation into the influence of phosphines, additives, bases and solvents on the Heck coupling reaction of 4-trifluoromethyl-1-chlorobenzene (2) is presented. It is shown that a number of catalyst systems exist for efficient cross coupling of electron-deficient aryl chlorides
Single and double Suzuki- Miyaura couplings with symmetric dihalobenzenes
Sinclair DJ and Sherburn MS
The Journal of Organic Chemistry, 70(9), 3730-3733 (2005)
Pd-SAPO-31, an efficient, heterogeneous catalyst for Heck reactions of aryl chlorides.
Srivastava R, et al.
Tetrahedron Letters, 44(18), 3649-3651 (2003)
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