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901591

Sigma-Aldrich

18-Crown-6 solution

1.0 M in THF

Synonym(s):

1,4,7,10,13,16-Hexaoxacyclooctadecane

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About This Item

Linear Formula:
C12H24O6
CAS Number:
17455-13-9
MDL number:
MFCD00005113
UNSPSC Code:
12352005
NACRES:
NA.22

form

liquid

concentration

1.0 M in THF

density

0.944 g/mL

InChI

1S/C12H24O6/c1-2-14-5-6-16-9-10-18-12-11-17-8-7-15-4-3-13-1/h1-12H2

InChI key

XEZNGIUYQVAUSS-UHFFFAOYSA-N

Application

18-Crown-6 may be used to catalyze the N-alkylation of heterocyclic compounds and allylation of functionalized aldehydes.
Additive for greener etherification using KF-alumina.
Additive for greener etherification using KF-alumina.

Synthesis of diaryl ethers, diaryl thioethers, and diarylamines mediated by potassium fluoride-alumina and 18-crown-6
Phase-transfer catalyst used in a chemoselective reduction of fused tetrazoles with NaBH4 and potassium hydroxide.

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Description
Pricing

Signal Word

Danger

Hazard Statements

H225,H302,H319,H335,H351

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3

Target Organs

Respiratory system

Supplementary Hazards

EUH019

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

-2.0 °F

Flash Point(C)

-18.88 °C

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Phase-transfer alkylation of heterocycles in the presence of 18-crown-6 and potassium tert-butoxide.
Guida WC and Mathre DJ
The Journal of Organic Chemistry, 45(16), 3172-3176 (1980)
Synthesis, 3275-3275 (2006)
Preparation and purification of 18-crown-6 [1, 4, 7, 10, 13, 16-hexaoxacyclooctadecane].
Gokel GW, et al.
The Journal of Organic Chemistry, 39(16), 2445-2446 (1974)
Abdalla A Elbashir et al.
Journal of chromatography. A, 1218(31), 5344-5351 (2011-07-06)
Using capillary electrophoresis (CE) three chiral primary amine compounds 1-aminoindan (AI), 1-(1-naphthyl)ethylamine (NEA) and 1,2,3,4-tetrahydro-1-naphthylamine (THAN), exhibited only partial or no separation when β-cyclodextrin (βCD) was used as chiral selector. The use of 18-crown-6 (18C6) as a second additive with
Amy Hrdina et al.
Health physics, 101(2), 187-195 (2011-06-29)
A cation exchange polymer resin embedded with magnetic nanoparticles and modified with crown ether was developed for urinalysis to rapidly monitor levels of (90)Sr exposure in humans who have been involved in a nuclear event. Invention of the resin matrix
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