D-Proline CAS 344-25-2

D-Proline CAS 344-25-2

CAS NO: 344-25-2
Molecular Formula: C5H9NO2
Molecular Weight: 115.13
EINECS NO: 206-452-7
MDL NO: MFCD00064317
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Product Details

Product Description:

Product Name: D-Proline CAS NO:344-25-2



(R)-Pyrrolidine-2-carboxylic acid;



Chemical & Physical Properties:

Appearance: White to off-white powder

Assay :≥99.0%

Density:1.186 g/cm3

Boiling Point:252.2℃ at 760 mmHg

Flash Point:106.3℃

Melting point:223℃


D-amino acids are an important class of chiral reagents and chiral intermediates.

At present, most of the production of D-amino acids is to prepare racemates by synthetic methods, and then resolve them to obtain optical isomers. Using asymmetric conversion method, using (2R,3R)-tartaric acid as the resolving agent, in the presence of butyraldehyde, the racemization of L-proline and the combination of D-proline and (2R,3R)-tartaric acid The two-step reaction of salt formation and crystallization proceeded simultaneously. The total yield reached 82%.


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