In heterogeneous catalysis, the catalyst is in a different phase from the reactants. COA of Formula: C9H8O4, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 70918-54-6, name is (S)-1,4-Benzodioxane-2-carboxylic acid. In an article£¬Which mentioned a new discovery about 70918-54-6
Highly efficient resolutions of 1,4-benzodioxane-2-carboxylic acid with para substituted 1-phenylethylamines
The salts of (S)- and (R)-1,4-benzodioxane-2-carboxylic acid with eight (S)-1-arylethylamines were prepared. The determination of their melting points and of their solubilities in alcohol solvents revealed large differences between the diastereomeric benzodioxanecarboxylates of (S)-1-(p-nitrophenyl)ethylamine and of (S)-1-(p-methylphenyl)ethylamine. Therefore, these latter amines were selected to resolve (¡À)-1,4-benzodioxane-2-carboxylic acid by diastereoselective crystallization finding that both of them display a very high resolution ability for such a substrate, which contrasts with the null efficiency of unsubstituted 1-phenylethylamine. These results are consistent with DSC evidences, which indicated that the two successfully resolved diastereomeric systems are binary mixtures exhibiting a eutectic with a high content of the more soluble diastereomeric salt. The new procedures can advantageously replace the two resolutions we had previously reported, that of the same acid with dehydroabietylamine and that of glycerol acetonide, a precursor of 1,4-benzodioxane-2-carboxylic acid, with 1-phenylethylamine.
I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 70918-54-6, help many people in the next few years.COA of Formula: C9H8O4
Reference£º
Benzodioxan,
1,4-Benzodioxane | C8H8O2 – PubChem