60435

Sigma-Aldrich

Potassium tert-pentoxide solution

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

Synonym(s):
Potassium (2-methyl-2-butoxide), Potassium tert-pentylate
Linear Formula:
CH3CH2C(CH3)2OK
CAS Number:
Molecular Weight:
126.24
Beilstein/REAXYS Number:
4149025
MDL number:
PubChem Substance ID:
NACRES:
NA.22
Pricing and availability is not currently available.

Quality Level

grade

technical

concentration

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

density

0.90 g/mL at 20 °C

SMILES string

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

InChI

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

InChI key

ZRLVQFQTCMUIRM-UHFFFAOYSA-N

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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.

Packaging

1 L in glass bottle
250 mL in glass bottle

Caution

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

Signal Word

Danger

Target Organs

Central nervous system

Supp Hazards

EUH014

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

UN 2924 8(3) / PGII

WGK Germany

WGK 3

Flash Point(F)

39.2 °F

Flash Point(C)

4 °C

Certificate of Analysis
Certificate of Origin
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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