Malic Acid → Malic Acid

HRID 2250541Notes

Reaction equation

HRID 2250541 reaction equation
[C:1]([OH:8])(=[O:7])[CH2:2][CH2:3][C:4]([OH:6])=[O:5].[C:9]([OH:17])(=[O:16])[CH:10]([CH2:12][C:13]([OH:15])=[O:14])[OH:11]>[Ge](=O)=O>[C:1]([OH:8])(=[O:7])[CH2:2][CH2:3][C:4]([OH:6])=[O:5].[CH2:9]([OH:16])[CH2:10][CH2:12][CH2:13][OH:14].[C:9]([OH:17])(=[O:16])[CH:10]([CH2:12][C:13]([OH:15])=[O:14])[OH:11]

Participants

6

Reactant 2

HCID 525Malic AcidHCID 1110Succinic Acid

Product 3

HCID 525Malic AcidHCID 1110Succinic AcidHCID 80641,4-Butanediol

Reagents, catalysts & solvents 1

HCID 147961310-53-8Catalyst

Procedure

As a result of production of a polyester in the same manner as in Example 1-A except that 100.3 g (0.85 mol) of succinic acid, 80.4 g (0.89 mol) of 1,4-butanediol, 0.37 g (2.8×10−3 mol) of malic acid, and 1.34 g (2.8×10−3 mol, 0.64 mol % relative to succinic acid as a whole) of 27.7% by weight of an aqueous malic acid solution in which germanium dioxide as a catalyst had been dissolved in an amount of 4% by weight beforehand were added at the feed of the starting materials in Example 1-A, a polyester having a reduced viscosity (ηsp/C) of 2.8 was obtained. The polymerization reaction time under reduced pressure of 0.07×103 Pa was 1.5 hours. The amount of the terminal carboxyl group was 22 eq/ton, the amount of the terminal OH group was 60 eq/ton, and the contents of a carbonate bond, a urethane bond, an aliphatic monooxymonocarboxylic acid unit, and a phosphorus atom derived from a phosphorus-containing compound were each 0.

Sources & evidence

ORD record
ord-d768d99a52834af88b90072b3b41a849
Source dataset
uspto-grants-2008_01
Patent number
US07317069B2

Reaction notes

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