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Merck
CN

60435

Potassium tert-pentoxide solution

technical, ~25% in toluene (T, ~1.7 M)

Synonym(s):

Potassium (2-methyl-2-butoxide), Potassium tert-pentylate

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About This Item

Linear Formula:
CH3CH2C(CH3)2OK
CAS Number:
41233-93-6
Molecular Weight:
126.24
UNSPSC Code:
12352001
NACRES:
NA.22
PubChem Substance ID:
57651765
MDL number:
MFCD00064808
Beilstein/REAXYS Number:
4149025

Key Documents

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Product Name

Potassium tert-pentoxide solution, technical, ~25% in toluene (T, ~1.7 M)

InChI key

ZRLVQFQTCMUIRM-UHFFFAOYSA-N

SMILES string

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

InChI

1S/C5H11O.K/c1-4-5(2,3)6;/h4H2,1-3H3;/q-1;+1

grade

technical

concentration

~25% in toluene (T, ~1.7 M)

density

0.90 g/mL at 20 °C

Quality Level

200

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Application

Potassium tert-pentoxide solution has been used as a base to synthesize [RuClPh(CO)(H2IMes)(PCy3)] from second-generation Grubbs metathesis catalyst, [RuCl2(=CHPh)(H2IMes)(PCy3)], (where H2IMes is 1,3-dimethyl-4,5-dihydroimidazol-2-ylidene and PCy3 is tricyclohexylphosphine) and benzyl alcohol. This complex is a solid, air-stable and highly active isomerization catalyst.

Disclaimer

may crystallize; can be redissolved on heating to approx. 30°C

signalword

Danger

Hazard Classifications

Aquatic Chronic 3 - Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 2 - Repr. 2 - Skin Corr. 1B - STOT RE 2 - STOT SE 3

target_organs

Central nervous system

supp_hazards

EUH014

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

39.2 °F

flash_point_c

4 °C

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Regulatory Information

易制毒化学品（3类）
危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
MKCQ9385
MKCT4263
MKCT0518
MKCQ3452
MKCQ1347

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Degradation of the Second?Generation Grubbs Metathesis Catalyst with Primary Alcohols and Oxygen? Isomerization and Hydrogenation Activities of Monocarbonyl Complexes.
Dinger MB
European Journal of Inorganic Chemistry, 2003(15), 2827-2833 (2003)

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