4',4''(5'')-Di-tert-butyldibenzo-18-crown-6

Product Name: 4',4''(5'')-Di-tert-butyldibenzo-18-crown-6
CAS No.: 29471-17-8
Chemical Name: 4',4''(5'')-Di-tert-butyldibenzo-18-crown-6
Synonyms: Di-(tert-butylbenzo)-18-crown-6;Bis(tert-butylbenzo)-18-crown-6;4,4'-Di-tert-butyldibenzo-18-crown-6;14)-bis(1,1-dimethylethyl)-ro-13(or2;AR,AR'-DI-TERT-BUTYLDIBENZO-18-CROWN-6;4',4''(5'')-DI-TERT-BUTYLDIBENZO-18-CROWN-6;4',4pi(5pi)-Di-tert-butyldibenzo-18-crown-6;4',4''(5'')-DI-TERT-BUTYLDIBENZO-18-CROWN-6;4',4''(5'')-Di-tert-butyldibenzo-18-crown-6,94%;4',4''(5'')-Di-tert-butyldibenzo-18-crown-6 95%
CBNumber: CB7722219
Molecular Formula: C28H40O6
Formula Weight: 472.61
MOL File: 29471-17-8.mol

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4',4''(5'')-Di-tert-butyldibenzo-18-crown-6 Property

Melting point:: 112-116 °C
Boiling point:: 533.38°C (rough estimate)
Density: 1.0542 (rough estimate)
refractive index: 1.6000 (estimate)
BRN: 1667522
InChI: InChI=1S/C28H40O6/c1-27(2,3)21-7-9-23-25(19-21)33-17-13-30-14-18-34-26-20-22(28(4,5)6)8-10-24(26)32-16-12-29-11-15-31-23/h7-10,19-20H,11-18H2,1-6H3
InChIKey: CVQLBTRJDFZYMS-UHFFFAOYSA-N
SMILES: C12OCCOCCOC3=C(C=CC(C(C)(C)C)=C3)OCCOCCOC=1C=CC(C(C)(C)C)=C2
EPA Substance Registry System: Dibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecin, 2,13(or 2,14)-bis(1,1-dimethylethyl)-6,7,9,10,17,18,20,21-octahydro- (29471-17-8)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38-36/38-22
Safety Statements: 26-36-36/37
RIDADR: 2811
WGK Germany: 3
RTECS: HP5386500
TSCA: Yes
HazardClass: 6.1
PackingGroup: III
HS Code: 29329990

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 396443
Product name: 4′,4′′(5′′)-Di-tert-butyldibenzo-18-crown-6
Purity: 95%
Packaging: 1G
Price: $67.4
Updated: 2022/05/15

TRC

Product number: D429460
Product name: 4'',4''''(5'''')-Di-tert-butyldibenzo-18-crown-6
Packaging: 250mg
Price: $40
Updated: 2021/12/16

Frontier Specialty Chemicals

Product number: JK356879
Product name: 4',4''(5'')-Di-tert-butyldibenzo-18-crown-6,98%,mixtureofisomers
Packaging: 1g
Price: $86
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: CHM0011190
Product name: 4',4"(5")-DI-TERT-BUTYLDIBENZO-18-CROWN-6
Purity: 95.00%
Packaging: 250MG
Price: $568.79
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: CHM0011190
Product name: 4',4"(5")-DI-TERT-BUTYLDIBENZO-18-CROWN-6
Purity: 95.00%
Packaging: 1G
Price: $668.23
Updated: 2021/12/16

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4',4''(5'')-Di-tert-butyldibenzo-18-crown-6 Chemical Properties,Usage,Production

Description

4′,4″(5″)-Di-tert-butyldibenzo-18-crown-6 is a hydrophobic crown ether compound. This crown ether is potentially useful in studies of ion transport through non-polar regions and membranes, and has been described in the design of microsensor devices for ammonia determination based upon ammonia-mediated deprotonation of a pH indicator followed by sequestering of ammonium within the 4′,4″(5″)-Di-tert-butyldibenzo-18-crown-6 sphere.

Chemical Properties

Off-white powder

Uses

4'',4''''(5'''')-Di-tert-butyldibenzo-18-crown-6 is a hydrophobic crown ether compound..

Synthesis

4',4''(5'')-Di-tert-butyldibenzo-18-crown-6 (DTBB18C6) was synthesized using 4-tert-butyl catechol (TBC) as starting material, 2,2′-diethylene glycol di(p-touenesulfonate) as cyclization reagent, Cs2CO3 as template, and tetrahydrofuran (THF) as solvent. The reaction was carried out in a sealed environment with nitrogen, and Cs2CO3 was supplemented in three steps. Moreover, it could also be synthesized by improving the electrophilic aromatic substitution of dibenzo-18-crown-6 (DB18C6) using tert-butyl alcohol (TBA) as alkylation reagent, H3PO4 (85 wt %) as catalyst and CH2Cl2 as solvent[1-2].

References

[1] Juan Fan. “Preparation of 4′,4′′(5′′)-Di-tert-butyldibenzo-18-crown-6 Based on Electrophilic Aromatic Substitution.” Chemistry Letters 41 1 (2012): 274–276.
[1] Jun Fan. “Optimization of Synthetic Strategy of 4′4″(5″)-Di-tert-butyldibenzo-18-crown-6 Using Response Surface Methodology.” Organic Process Research & Development 17 3 (2013): 368–374.

4',4''(5'')-Di-tert-butyldibenzo-18-crown-6 Preparation Products And Raw materials

Raw materials

Preparation Products

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4',4''(5'')-Di-tert-butyldibenzo-18-crown-6 Suppliers

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29471-17-8, 4',4''(5'')-Di-tert-butyldibenzo-18-crown-6Related Search:

18-Crown-6 4,4'-DI-TERT-BUTYLDIBENZO-18-CROWN-6 = AR,AR'-DI-TERT-BUTYLDIBENZO-18-CROWN-6 O,O'-BIS(2-HYDROXYETHOXY)BENZENE 2-(4-tert-butylphenoxy)ethanol 4',4''(5'')-DI-TERT-BUTYLDIBENZO-18-CROWN-6 1,5-BIS(O-HYDROXYPHENOXY)-3-OXAPENTANE tert-Butylcatechol Dibenzo-18-crown-6 2-(2-HYDROXYETHOXY)PHENOL 3-tert-Butylphenol

4',4''(5'')-DI-TERT-BUTYLDIBENZO-18-CROWN-6

AR,AR'-DI-TERT-BUTYLDIBENZO-18-CROWN-6

14)-bis(1,1-dimethylethyl)-ro-13(or2

4',4''(5'')-di-tert-butyldibenzo-18-crown-6, mixed isomers

4',4pi(5pi)-Di-tert-butyldibenzo-18-crown-6

4,4'-Di-tert-butyldibenzo-18-crown-6

4',4''(5'')-Di-tert-butyldibenzo-18-crown-6,94%

4',4''(5'')-di-tert-butyldibenzo-18-crown-6, mixed iso

4,45-Di-tert.-butylbenzo-18-crown-6, mixture of isomers

4',4''(5'')-Di-tert-butyldibenzo-18-crown-6 95%

4',4''(5'')-Di-tert-butyldibenzo-18-crown-6, 98%, mixture of isomers

Bis(tert-butylbenzo)-18-crown-6

4prime,4primeprime(5primeprime)-Di-tert-butyldibenzo-18-crown-6

Di-(tert-butylbenzo)-18-crown-6

4',4''(5'')-DI-TERT-BUTYLDIBENZO-18-CROWN-6

29471-17-8

C28H40O6

Synthetic Reagents

Crown Ethers

Chelation/Complexation Compounds

Crown Ethers

Chelation/Complexation Compounds

Synthetic Reagents