Cyclopropanol → Cyclopropanol

HRID 2168862Notes

Reaction equation

HRID 2168862 reaction equation
[C:1](=[O:4])([OH:3])[OH:2].[CH2:5]([OH:11])[CH2:6][CH2:7][CH:8]([OH:10])[CH3:9].[CH:12]1([OH:15])[CH2:14][CH2:13]1>>[C:1](=[O:2])([OH:4])[OH:3].[CH:8]1([OH:10])[CH2:9][CH2:7]1.[CH:12]1([OH:15])[CH2:14][CH2:13]1.[C:1](=[O:2])([OH:4])[OH:3].[CH2:5]([OH:11])[CH2:6][CH2:7][CH:8]([OH:10])[CH3:9].[CH:1]1([OH:4])[CH2:6][CH2:5]1

Participants

5

Reactant 2

HCID 123361CyclopropanolHCID 867022981,4-Pentanediol carbonate

Product 3

HCID 123361CyclopropanolHCID 71346270Carbonic acid--cyclopropanol (1/2)HCID 867022981,4-Pentanediol carbonate

Procedure

Adding 1,4-pentanediol carbonate and cyclopropanol in a tubular ester exchange reactor; then adding the metal-rare earth oxide composite catalyst prepared by the embodiment 3, uniformly mixing and performing an ester exchange reaction, distilling the reaction product to obtain dicyclopropanol carbonate, wherein the mole ratio of 1,4-pentanediol carbonate to cyclopropanol is 1:15, and the weight ratio of the metal-rare earth oxide composite catalyst to the total weight of 1,4-pentanediol carbonate and cyclopropanol is 2:100; the ester exchange reaction is performed at a temperature of 140° C. and under an absolute pressure of 0.5 MPa for 120 minutes; in the ester exchange reaction, the conversion rate of 1,4-pentanediol carbonate is 99%, and yield of the dicyclopropanol carbonate is 93%.

Workup

  1. customprepared by the embodiment 3
  2. additionuniformly mixing
  3. distillationdistilling the reaction product

Sources & evidence

ORD record
ord-827e696940a94fc4bf834d33b7cc0bc7
Source dataset
uspto-grants-2015_06
Patent number
US09045707B2

Reaction notes

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