We’ll be discussing some of the latest developments in chemical about CAS: 87392-07-2. Quality Control of (S)-Tetrahydrofuran-2-carboxylic acid
The invention discloses an optical pure 2 – tetrahydrofurfuryl acid preparation process, it will L – phenylalaninol and (RS)- 2 – tetrahydrofurfuryl acid in an organic solvent in the 1st splitting obtained after reaction diastereoisomer salt, then re-crystallization (S)- 2 – tetrahydrofurfuryl acid crude product, the crude product obtained after treatment of high optical purity (S)- 2 – tetrahydrofurfuryl acid, its ee value>99%; combined split mother liquor and recrystallization of the mother liquor, containing the (R)- 2 – tetrahydrofurfuryl acid mixed solution of the, then in the mixed solution of (R)- 2 – tetrahydrofurfuryl acid with D – phenylalaninol reaction into a salt, said salt by re-crystallization (R)- 2 – tetrahydrofurfuryl acid crude product, crude product after treatment to obtain the high optical pure (R)- 2 – tetrahydrofurfuryl acid, its ee value>99%. The invention to optical pure c serinol two configuration effectively split the 2 – tetrahydrofurfuryl acid, respectively shall be 2 – tetrahydrofurfuryl acid of the two kinds of optical isomers, its ee value is greater than 99%, secondly this invention is adopted as the solvent is cheap and low boiling point of acetone, ethyl acetate and the like solvent, are used as the split reaction and re-crystallization of the solvent, the solvent is easy to recovery and high recovery rate. (by machine translation)
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Reference:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem