Related Products of 120202-71-3, Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 120202-71-3, Name is (R)-Methyl 2-(2-chlorophenyl)-2-(6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl)acetate sulfate, SMILES is O=C(OC)[C@@H](C1=CC=CC=C1Cl)N2CCC3=C(C=CS3)C2.O=S(O)(O)=O, belongs to pyridine-derivatives compound. In a article, author is Vlasenko, Nina V., introduce new discover of the category.
Insight into the active site nature of zeolite H-BEA for liquid phase etherification of isobutylene with ethanol
The nature of active acid sites of zeolite H-BEA with different Si/Al ratios (15-407) in liquid phase etherification of isobutylene with ethanol in a continuous flow reactor in the temperature range 80-180 degrees C has been explored. We describe and discuss data concerning the strength and concentration of acid sites of H-BEA obtained by techniques of stepwise (quasi-equilibrium) thermal desorption of ammonia, X-ray diffraction, low-temperature adsorption of nitrogen, FTIR spectroscopy of adsorbed pyridine and solid-state Al-27 MAS NMR. The average values of the adsorption energy of NH3 on H-BEA were experimentally determined as 63.7; 91.3 and 121.9 mmol g(-1) (weak, medium, and strong, respectively). In agreement with this, a correlation between the rate of ethyl-tert-butyl ether synthesis and the concentration of weak acid sites (E-NH3 = 61.6-68.9 kJ mol(-1)) has been observed. It was concluded that the active sites of H-BEA for this reaction are Bronsted hydroxyls representing internal silanol groups associated with octahedrally coordinated aluminum in the second coordination sphere.
Related Products of 120202-71-3, Because enzymes can increase reaction rates by enormous factors and tend to be very specific, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 120202-71-3.
Reference:
Pyridine – Wikipedia,
,Pyridine | C5H5N – PubChem