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253197

Sigma-Aldrich

Dibenzo-24-crown-8

98%

Synonyma:

2,3,14,15-Dibenzo-1,4,7,10,13,16,19,22-octaoxacyclotetracosa-2,14-diene, 6,7,9,10,12,13,20,21,23,24,26,27-Dodecahydrodibenz[b,n]-1,4,7,10,13,16,19,22-octaoxacyclotetracosane

Přihlásitk zobrazení cen stanovených pro organizaci a smluvních cen
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About This Item

Empirický vzorec (Hillův zápis):
C24H32O8
Číslo CAS:
14174-09-5
Molekulová hmotnost:
448.51
Beilstein/REAXYS Number:
1693744
EC Number:
238-027-7
MDL number:
MFCD00005101
UNSPSC Code:
12352005
PubChem Substance ID:
24855301
NACRES:
NA.22

assay

98%

mp

103-105 °C (lit.)

SMILES string

C1COCCOc2ccccc2OCCOCCOCCOc3ccccc3OCCO1

InChI

1S/C24H32O8/c1-2-6-22-21(5-1)29-17-13-25-9-10-27-15-19-31-23-7-3-4-8-24(23)32-20-16-28-12-11-26-14-18-30-22/h1-8H,9-20H2

InChI key

UNTITLLXXOKDTB-UHFFFAOYSA-N

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Související kategorie

General description

Dibenzo-24-crown-8 is a macrocyclic compound that is used as a versatile reagent in organic synthesis due to its ability to form complexes with metal ions and enhance their solubility and reactivity. It is also used as a phase-transfer catalyst in various organic reactions, such as the synthesis of organic carbonates and the alkylation of phenols.

Application

Dibenzo-24-crown-8 can be used as a molecular transporter in the formation of [1]rotaxanes with thiazolium-based mono- and tris-branched ammonium ions. It is also used as a co-solvent and phase-transfer catalyst for cesium fluoride, to the development of a more efficient anhydrous fluorinating system for organic synthesis.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Osvědčení o analýze (COA)

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Sigma-Aldrich

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Sigma-Aldrich

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Sigma-Aldrich

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Dalton transactions (Cambridge, England : 2003), 48(19), 6546-6557 (2019-04-24)
[2]rotaxanes composed of a dibenzo-24-crown-8 wheel (DB24C8) and an axle containing two metal-complexing tetraazamacrocyclic units linked with a p-xylylene bridge, coordinating the same or different metal ions (Ni and/or Cu) are described. A symmetric di-Ni rotaxane crystallizes in the monoclinic
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