Ethylene Glycol → Propylene Glycol

HRID 2407637Notes

Reaction equation

HRID 2407637 reaction equation
[OH:1][CH2:2][CH:3]([CH2:5]O)[OH:4].C(O)CO>O>[OH:1][CH2:2][C:3](=[O:4])[CH3:5].[CH2:2]([OH:1])[CH:3]([OH:4])[CH3:5]

Participants

5

Reactant 2

HCID 174Ethylene GlycolHCID 753Glycerol2×

Product 2

HCID 1030Propylene GlycolHCID 8299Hydroxyacetone

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

20 wt % glycerol was dehydrated at nitrogen ambient pressure at 220° C. using 80 g of water as solvent. 1 g of 50% Cu+50% Mg catalyst of nano size catalyzed the reaction to give glycerol conversion of 24% with 79% selectivity to hydroxyacetone, 20% to 1,2-propylene glycol and 1% to ethylene glycol.

Workup

  1. customwas dehydrated at nitrogen ambient pressure at 220° C.
  2. customthe reaction

Sources & evidence

ORD record
ord-bec8a30b3eff4065b5efdaa466a08167
Source dataset
uspto-grants-2014_08
Patent number
US08809593B2

Reaction notes

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