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DIETHYLENE GLYCOL BIS(P-TOLUENESULFONATE)

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DIETHYLENE GLYCOL BIS(P-TOLUENESULFONATE) Basic information

Product Name:
DIETHYLENE GLYCOL BIS(P-TOLUENESULFONATE)
Synonyms:
  • PEG2-Tos 2,2'-oxybis-,1,1'-bis(4-methylbenzenesulfonate)
  • 4-methylbenzenesulfonic acid 2-[2-(4-methylphenyl)sulfonyloxyethoxy]ethyl ester
  • Doxofylline Impurity 17
  • 2-[2-(p-tolylsulfonyloxy)ethoxy]ethyl 4-methylbenzenesulfonate
  • Diethylene glycol bis(p-toluenesulfonate)≥ 99%(HPLC)
  • BIS(2-TOSYLOXYETHYL) ETHER
  • BIS[2-(P-TOLUENESULFONYLOXY)ETHYL] ETHER
  • DI(ETHYLENE GLYCOL) DI-P-TOSYLATE
CAS:
7460-82-4
MF:
C18H22O7S2
MW:
414.49
EINECS:
628-596-3
Product Categories:
  • CMLLYL
Mol File:
7460-82-4.mol
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DIETHYLENE GLYCOL BIS(P-TOLUENESULFONATE) Chemical Properties

Melting point:
87-89 °C (lit.)
Boiling point:
581.2±45.0 °C(Predicted)
Density 
1.301±0.06 g/cm3(Predicted)
storage temp. 
Sealed in dry,Room Temperature
solubility 
Chloroform (Slightly), Ethyl Acetate (Slightly)
form 
Solid
color 
Off-White
BRN 
583800
InChIKey
VYVPNTJBGPQTFA-UHFFFAOYSA-N
CAS DataBase Reference
7460-82-4(CAS DataBase Reference)
EPA Substance Registry System
Ethanol, 2,2'-oxybis-, bis(4-methylbenzenesulfonate) (7460-82-4)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
HS Code 
2909.30.6000

MSDS

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DIETHYLENE GLYCOL BIS(P-TOLUENESULFONATE) Usage And Synthesis

Description

Tos-PEG3-Tos is a PEG linker containing two tosyl groups. The hydrophilic PEG spacer increases solubility in aqueous media. The tosyl group is a very good leaving group for nucleophilic substitution reactions.

Chemical Properties

White to off-white powder

Uses

Diethylene glycol di(p-toluenesulfonate) was used in the synthesis of bis(dibenzosulfoxo)-27,30,35,38-tetramethyl-24-crown-6, bis(dibenzosulfoxo)-21,24,29,32-tetramethyl-18-crown-4, dibenzosulfoxo-15,18-dimethyl-12-crown-3 and dibenzosulfoxo-12,15-dimethyl-9-crown-2 macrocycles.

Purification Methods

Purify the ester by recrystallisation from Me2CO and dry it in a vacuum. [Beilstein 11 III 225.]

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