Malic Acid → HCID 86707852, compound

HRID 627814Notes

Reaction equation

HRID 627814 reaction equation
[C:1]([OH:6])(=[O:5])[C@H:2]([CH3:4])[OH:3].[C:7]([OH:15])(=[O:14])[CH:8]([CH2:10][C:11]([OH:13])=[O:12])[OH:9].C(O)(=O)C(C)O>CC(C)[O-].CC(C)[O-].CC(C)[O-].CC(C)[O-].[Ti+4]>[C:7]([OH:15])(=[O:14])[CH:8]([CH2:10][C:11]([OH:13])=[O:12])[OH:9].[C:1]([OH:6])(=[O:5])[CH:2]([CH3:4])[OH:3]

Participants

5

Reactant 3

HCID 525Malic AcidHCID 612Lactic AcidHCID 107689L-Lactic Acid2×

Product 1

HCID 86707852HCID 86707852, compound

Reagents, catalysts & solvents 1

HCID 11026Titanium isopropoxideCatalyst

Procedure

To a 500 ml size glass reactor having a stirrer and a degassing opening, 13.4 g (0.1 mol) of D,L-malic acid made by Wako Pure Chemical Industries, Ltd., 100.2 g (1.0 mol) of 90% L-lactic acid made by Purac, and 18.5 mg (0.0016 mol) of titanium tetraisopropoxide made by Wako Pure Chemical Industries, Ltd. were supplied. In this case, the mol ratio of the malic acid supplied and the lactic acid supplied is 1:10. The reactor was immersed in an oil bath, and a stirring was carried out at 135° C. under 10 mmHg for 30 hours with flowing nitrogen. The reactor was taken out from the oil bath, and the reaction solution was taken out on a stainless steel bat to be cooled and solidified. The colorless and transparent solid obtained was crushed to obtain 65 g of a powdery polymer. The Mw of the polymer was 3,300.

Workup

  1. customTo a 500 ml size glass reactor having
  2. customThe reactor was immersed in an oil bath
  3. temperatureto be cooled
  4. customThe colorless and transparent solid obtained
  5. customwas crushed

Sources & evidence

ORD record
ord-8a70fec8e6f14537972263a599320aed
Source dataset
uspto-grants-2016_04
Patent number
US09309402B2

Reaction notes

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