Glycerol → Propylene Glycol

HRID 2407639Notes

Reaction equation

HRID 2407639 reaction equation
[OH:1][CH2:2][CH:3]([CH2:5]O)[OH:4].[CH3:7][C:8]([CH2:10][OH:11])=[O:9]>O>[CH2:2]([OH:1])[CH:3]([OH:4])[CH3:5].[OH:11][CH2:10][C:8](=[O:9])[CH3:7]

Participants

5

Reactant 2

HCID 753Glycerol2×HCID 8299Hydroxyacetone

Product 2

HCID 1030Propylene GlycolHCID 8299Hydroxyacetone

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

Dehydration of 80 wt % glycerol followed by acetol hydrogenation in a single step at 220° C. in 20 g of water as a solvent using 0.01 g/ml of 67% Cu+33% Cr catalyst in 5 h gave 21% conversion of glycerol with selectivity's of 69% to 1,2-propylene glycol and 31% to hydroxyacetone.

Workup

  1. customin 5 h

Sources & evidence

ORD record
ord-4a8f9f405ef64e968671952745ac8a56
Source dataset
uspto-grants-2014_08
Patent number
US08809593B2

Reaction notes

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