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Merck

900502

Sigma-Aldrich

碳酸钾

anhydrous, free-flowing, −325 mesh, Redi-Dri, reagent grade, ≥98%

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About This Item

线性分子式:
K2CO3
CAS号:
分子量:
138.21
Beilstein:
4267587
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
PubChem物質ID:
NACRES:
NA.21

等級

anhydrous
reagent grade

品質等級

產品線

Redi-Dri

化驗

≥98%

形狀

powder

品質

free-flowing

粒徑

−325 mesh

pH值

11-13 (25 °C, 138 g/L)

mp

891 °C (lit.)

SMILES 字串

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

InChI

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

InChI 密鑰

BWHMMNNQKKPAPP-UHFFFAOYSA-L

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一般說明

碳酸钾是一种无机碱。它可作为碱参与环钯配合物催化的氯苯与苯乙烯的Heck反应。

應用

碳酸钾用于以下研究:
  • 多取代碘苯衍生物的合成。
  • 作为合成高分子量均聚物和各种双酚衍生物的共聚物的基础。
  • 作为芳基卤化物与芳基硼酸的 Suzuki 偶联的碱基。
  • 作为苯乙烯和溴苯 Heck 反应的基础。

法律資訊

Redi-Dri is a trademark of Sigma-Aldrich Co. LLC

象形圖

Exclamation mark

訊號詞

Warning

危險聲明

危險分類

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

標靶器官

Respiratory system

儲存類別代碼

13 - Non Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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Robert Möckel et al.
Organic letters, 17(7), 1644-1647 (2015-03-21)
The cobalt-catalyzed Diels-Alder reaction of trimethylsilyl-substituted alkynes with 1,3-dienes led to dihydroaromatic intermediates which were transformed into iodobenzene derivatives. For this transformation, the dihydroaromatic intermediates had to be oxidized and the trimethylsilyl-substituted arene had to undergo a silicon-iodine exchange reaction.
Synthesis, kinetic observations and characteristics of polyarylene ether sulphones prepared via a potassium carbonate DMAC process.
Viswanathan R, et al.
Polymer, 25(12), 1827-1836 (1984)
Chelating N-heterocyclic carbene ligands in palladium-catalyzed Heck-type reactions.
Herrmann WA, et al.
Journal of Organometallic Chemistry, 557(1), 93-96 (1998)
Heck reaction using palladium complexed to dendrimers on silica.
Alper H, et al.
Canadian Journal of Chemistry, 78(6), 920-924 (2000)
Carlos Arroniz et al.
Organic letters, 15(4), 910-913 (2013-02-05)
ortho-Arylation of ortho-substituted benzoic acids is a challenging process due to the tendency of the reaction products toward Pd-catalyzed protodecarboxylation. A simple method for preventing decarboxylation in sterically hindered benzoic acids is reported. The method described represents a reliable and

商品

Redi-Dri™ prevents hygroscopic powders, such as inorganic salts, from absorbing moisture and forming clumps, leaving the salts free-flowing every time.

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