Potassium Iodide → 2,2'-[[1,1'-Biphenyl]-2,2'-diylbis(oxy)]di(ethan-1-ol)

HRID 1942828Notes

Reaction equation

HRID 1942828 reaction equation
[C:1]1([C:8]2[C:9]([OH:14])=[CH:10][CH:11]=[CH:12][CH:13]=2)[C:2]([OH:7])=[CH:3][CH:4]=[CH:5][CH:6]=1.C1(=O)[O:19][CH2:18][CH2:17]O1.[I-].[K+].CN(C)C=O.[C:28](OCC)(=[O:30])[CH3:29]>>[OH:30][CH2:28][CH2:29][O:14][C:9]1[CH:10]=[CH:11][CH:12]=[CH:13][C:8]=1[C:1]1[CH:6]=[CH:5][CH:4]=[CH:3][C:2]=1[O:7][CH2:17][CH2:18][OH:19]

Participants

6

Reactant 5

HCID 4875Potassium IodideHCID 6228DimethylformamideHCID 7303Ethylene carbonateHCID 8857Ethyl AcetateHCID 15731(1,1'-Biphenyl)-2,2'-diol

Product 1

HCID 126606412,2'-[[1,1'-Biphenyl]-2,2'-diylbis(oxy)]di(ethan-1-ol)

Conditions

Temperature
140 °C

Procedure

To a 12000 ml 3 neck round bottom equipped with an overhead stirrer, heating mantle, temperature probe, and condenser with gas bubbler was added 2421 g. biphenyl-2,2′-diol (XI), 2519 g. ethylene carbonate, 24.2 g. potassium iodide, and 50 g. N,N-dimethlformamide (DMF). The reaction was stirred well and heated to 140° C. The reaction was monitored by the amount of gas released and gas chromatography (GC). After 4 hours the reaction was ˜70% starting material. The temperature was increased to 150° C. After an additional 4 hours the starting material and mono substituted intermediate were reacted. The reaction was cooled to 40° C. and 2000 ml ethyl acetate was added. The reaction mixture was washed 3 times with 500 ml water/sodium chloride (brine). The organic layer was dried over MgSO4, filtered and concentrated under vacuum to recover a dark brown oil. The yield was 3400 g.

Workup

  1. temperatureheating mantle
  2. additiontemperature probe, and condenser with gas bubbler was added 2421 g
  3. temperatureThe temperature was increased to 150° C
  4. waitAfter an additional 4 hours the starting material
  5. customwere reacted
  6. temperatureThe reaction was cooled to 40° C.
  7. washThe reaction mixture was washed 3 times with 500 ml water/sodium chloride (brine)
  8. dry with materialThe organic layer was dried over MgSO4
  9. filtrationfiltered
  10. concentrationconcentrated under vacuum
  11. customto recover a dark brown oil

Sources & evidence

ORD record
ord-a4f3e1b9d05a4042889b7d949b56bf22
Source dataset
uspto-grants-2013_03
Patent number
US08389599B2

Reaction notes

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