Water → P-Cymene

HRID 128498

Reaction equation

HRID 128498 reaction equation
[C:1]1([CH:8]([CH3:10])[CH3:9])[CH:6]=[CH:5][C:4]([CH3:7])=[CH:3][CH:2]=1.[OH2:11]>>[C:1]1([CH:8]([CH3:10])[CH3:9])[CH:6]=[CH:5][C:4]([CH3:7])=[CH:3][CH:2]=1.[CH2:2]([CH:1]([CH2:6][CH2:5][CH2:4][CH3:7])[CH2:8][OH:11])[CH3:3]

Participants

4

Reactant 2

HCID 962WaterHCID 7463P-Cymene

Product 2

HCID 7463P-CymeneHCID 77202-Ethylhexanol

Procedure

Solvent (500 g; 90% para-cymene/10% 2-ethylhexanol) and water (2000 g) was charged to a 5 L, 3-necked flask fitted with stirrer, thermometer and distillation head. The mixture was heated to reflux, and oil/water fractions were separated into oil and aqueous layers and the layers weighed to determine the oil:water ratio throughout the distillation. The oil composition was determined by gas/liquid chromatography analysis. Results in Table 4 show that the percent composition relative to the para-cymene and 2-ethylhexanol is substantially unchanged with nearly 95% of solvent recovered.

Workup

  1. customfitted with stirrer
  2. distillationthermometer and distillation head
  3. temperatureThe mixture was heated
  4. temperatureto reflux
  5. customoil/water fractions were separated into oil and aqueous layers
  6. distillationwater ratio throughout the distillation

Sources & evidence

ORD record
ord-b71808d29147433497aec5c34d3c125f
Source dataset
uspto-grants-1995_11
Patent number
US05464557

Linked notes

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