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Chemical Structure| 10326-41-7 Chemical Structure| 10326-41-7
Chemical Structure| 10326-41-7

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CAS No.: 10326-41-7

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Product Details of D-(-)-Lactic acid

CAS No. :10326-41-7
Formula : C3H6O3
M.W : 90.08
SMILES Code : C[C@@H](O)C(O)=O
MDL No. :MFCD00068313
InChI Key :JVTAAEKCZFNVCJ-UWTATZPHSA-N
Pubchem ID :61503

Safety of D-(-)-Lactic acid

GHS Pictogram:
Signal Word:Danger
Hazard Statements:H314
Precautionary Statements:P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P260-P264-P280-P305+P351+P338-P405-P501
Class:8
UN#:3261
Packing Group:Ⅲ

Application In Synthesis of D-(-)-Lactic acid

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 10326-41-7 ]

[ 10326-41-7 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 4138-26-5 ]
  • [ 10326-41-7 ]
  • [ 1262398-24-2 ]
YieldReaction ConditionsOperation in experiment
42.7% In water; ethyl acetate; butan-1-ol; at 10 - 70℃; for 17h;Resolution of racemate; Ten grams (10 g, 78.0 mmol) of <strong>[4138-26-5]nipecotamide</strong> was dissolved in a mixed solvent of 30 mL of 1-butanol and 30 mL of ethyl acetate. To the solution was added 8.53 g (98.6percent ee, 90percent aqueous solution, 85.8 mmol) of D-lactic acid, and the solution was stirred at 70° C. To the reaction mixture was added a small amount of D-lactic acid salt of R-<strong>[4138-26-5]nipecotamide</strong>, which was prepared in advance, as a seed crystal, and a diastereomer salt was precipitated. The reaction mixture was stirred for 1 hour at the same temperature, and then was cooled to 10° C. while stirring for 6 hours. The mixture was further stirred for 10 hours. The precipitated diastereorner salt was filtered and collected. The diastereomer salt was washed with a mixed solvent of 10 mL of 1-butanol and 10 mL of ethyl acetate at approximately 5° C. After drying, the obtained white diastereomer salt weighed 7.27 g. The diastereomer salt was D-lactic acid salt of R-<strong>[4138-26-5]nipecotamide</strong>, and the yield was 42.7percent. The optical purity of R-<strong>[4138-26-5]nipecotamide</strong> obtained from the diastereomer salt was analyzed and was found to be 98.0percent ee.1H-NMR (DMSO-d6, 400 MHz) deltappm: 7.47 (1H, s), 6.95 (1H, s), 3.71 (1H, q, J=13.7, 6.8 Hz), 3.14-3.02 (2H, m), 2.80-2.64 (2H, m), 2.54-2.44 (1H, m), 1.90-1.84 (1H, m), 1.74-1.67 (1H, m), 1.62-1.43 (2H, m), 1.14 (3H, d, J=6.8 Hz).
 

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