Tetraethylene Glycol → HCID 131710371, compound

HRID 1658907Notes

Reaction equation

HRID 1658907 reaction equation
[CH2:1]([OH:13])[CH2:2][O:3][CH2:4][CH2:5][O:6][CH2:7][CH2:8][O:9][CH2:10][CH2:11][OH:12].P(Br)(Br)[Br:15]>N1C=CC=CC=1>[Br-:15].[Br-:15].[CH2:11]([OH:12])[CH2:10][O:9][CH2:8][CH2:7][O:6][CH2:5][CH2:4][O:3][CH2:2][CH2:1][OH:13]

Participants

4

Reactant 2

HCID 8200Tetraethylene GlycolHCID 24614Phosphorus tribromide

Product 1

HCID 131710371HCID 131710371, compound

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

300 g. of tetraethylene glycol and 100 g. of anhydrous pyridine are slowly added to 727 g. of phosphorus tribromide, while agitating and cooling the mixture. After cooling to room temperature, the mixture is poured on to ice and the organic phase is decanted, washed with water and dilute hydrochloric acid and dried over sodium sulphate. After distillation under vacuum (123°C-125°C and 0.4 mm. Hg) the title compound is obtained.

Workup

  1. temperaturecooling the mixture
  2. additionthe mixture is poured on to ice
  3. customthe organic phase is decanted
  4. washwashed with water and dilute hydrochloric acid
  5. dry with materialdried over sodium sulphate
  6. distillationAfter distillation under vacuum (123°C-125°C and 0.4 mm. Hg) the title compound
  7. customis obtained

Sources & evidence

ORD record
ord-50e2b660390e44139e25a9ca4b019e0d
Source dataset
uspto-grants-1976_06
Patent number
US03966766

Reaction notes

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