In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Safety of 2-(tert-Butoxycarbonyl)-1,2,3,4-tetrahydroisoquinoline-1-carboxylic acid, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 166591-85-1, name is 2-(tert-Butoxycarbonyl)-1,2,3,4-tetrahydroisoquinoline-1-carboxylic acid. In an article£¬Which mentioned a new discovery about 166591-85-1
An optical pure 2 – tetrahydrofurfuryl acid preparation process (by machine translation)
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£º
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem