Terephthalic Acid → HCID 67707104, compound

HRID 1940868Notes

Reaction equation

HRID 1940868 reaction equation
[C:1]([OH:12])(=[O:11])[C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1.C(O)CCCCCO>>[C:1]([OH:12])(=[O:11])[C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1.[CH:6]([OH:8])([OH:7])[CH2:5][CH2:4][CH2:3][CH2:2][CH3:1]

Participants

3

Reactant 2

HCID 7489Terephthalic AcidHCID 123741,6-Hexanediol

Product 1

HCID 67707104HCID 67707104, compound

Conditions

Temperature
150 °C

Procedure

Two moles acid chloride of terephthalic acid ##STR60## and three moles of 1,6-hexanediol [HO(CH2)6OH] are placed in a 100 mL flask equipped with a distillation extender, a septum, and a stirring magnet. The flask is flushed with argon for 15 min. then heated in an oil bath at about 150° C. The HCl in the argon flow can be monitored by pH paper--a more quantitative method uses a basic solution of known normality and allows the argon flow to bubble through. The solution is then titrated and the extent of reaction can be calculated. The reaction time is about 4 to 8 hours.

Workup

  1. customequipped with a distillation extender
  2. customThe flask is flushed with argon for 15 min.
  3. customto bubble through
  4. customthe extent of reaction

Sources & evidence

ORD record
ord-f83a5b88ecf14cd3a060fc38b77a901a
Source dataset
uspto-grants-1997_12
Patent number
US05700882

Reaction notes

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