The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.14187-32-7, Name is Dibenzo-18-crown-6, molecular formula is C20H24O6. In a Article，once mentioned of 14187-32-7, category: chiral-catalyst
The equilibrium constants for complexation of a diazonium cation with a crown ether, as determined from kinetic data on azo coupling with aromatic amines, increase with decreasing polarity of the solvent, indicating a predominant contribution of electrostatic forces to stabilization of the complex.The crown ether, the same as other electron-donor species, is a bifunctional participant in azo coupling.With C-coupling of active diazonium cations, where the formation of the diazammonium cation is the limiting stage, the formation of complexes with crown ethers leads to a decrease in electrophilicity of the cation.In the case of N-coupling or C-coupling of low-activity diazonium cations, where abstraction of a proton from the diazammonium and arenonium cations is the limiting stage, crown ether plays the role of a basic catalyst.
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.category: chiral-catalyst, you can also check out more blogs about14187-32-7