The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.499-40-1, Name is (2R,3S,4R,5R)-2,3,4,5-Tetrahydroxy-6-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexanal, molecular formula is C12H22O11. In a Article，once mentioned of 499-40-1, Quality Control of: (2R,3S,4R,5R)-2,3,4,5-Tetrahydroxy-6-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexanal
Studies in solution and the solid state of coordination compounds derived from LiBH4, NaBH4, and bidentate aromatic amines
The mixture of 2, 2?-bipyridylamine, 2, 2?’-bipyridine, 1, 10phenanthroline, 1, 2-phenylendiamine, and 1, 4-phenylendiamine each with LiBH4 and NaBH4 in a 1:1 molar ratio in THF yields seven new complexes of the type MBH4-L-THF and one complex of the type MBH4-L. These compounds were characterized by IR and NMR spectroscopy and X-ray single-crystal structure determinations. In the solid state, the [BH4]- group is bidentate, as deduced from the stretching patterns observed in IR spectra and confirmed by X-ray single-crystal structure analysis. NMR spectroscopy showed that all amines act as bidentate ligands and are symmetrically coordinated to the metal cation. Complexes LiBH4-2, 2?bipyridine-THF (1), NaBH4-2, 2?-bipyridine-THF (2), LiBH4-1,10-phenanthroline-THF (3), and NaBH4- 1,10-phenanthroline-THF (4) have a discrete molecular structure, whereas the complexes LiBH4-1,2-phenylendiamine-THF (5), NaBH4-1, 2-phenylendiamine-THF (6), LiBH4-2, 2?-dipyridilamine (7), and LiBH4- 1, 4-phenylendiamine-THF (8) have polymeric structures in the solid state. N-borane-dipyridylamlne adduct 9 was isolated from, an aged, solution of 7. IR spectroscopy of the new complexes showed that the structures of complexes 1, 3, 4, and 6 are maintained in the solid state and in solution. A rotational barrier for the [BH4]- group of less than 38 KJ mol-1 was estimated for some of the new complexes.
Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.Quality Control of: (2R,3S,4R,5R)-2,3,4,5-Tetrahydroxy-6-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)hexanal, you can also check out more blogs about499-40-1
Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics