The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.2289-75-0, Name is 4,5-Dimethylthiazol-2-amine, molecular formula is C5H8N2S. In a Article£¬once mentioned of 2289-75-0, Recommanded Product: 2289-75-0
(Chemical Equation Presented) Condensation of 4-chloro-2-oxo-2H-chromene-3- carbonitrile (1) with heteroarylamines 2a-d in acetonitrile containing a catalytic amount of triethylamine followed by spontaneous intramolecular cyclization gave the novel coumarin derivatives 3a-d, respectively. These compounds underwent acid hydrolysis giving the corresponding oxoderivatives 4a-d. The structural assignments of the synthesized compounds were based on elemental, IR, 1H and 13C NMR analyses.
(Chemical Equation Presented) Condensation of 4-chloro-2-oxo-2H-chromene-3- carbonitrile (1) with heteroarylamines 2a-d in acetonitrile containing a catalytic amount of triethylamine followed by spontaneous intramolecular cyclization gave the novel coumarin derivatives 3a-d, respectively. These compounds underwent acid hydrolysis giving the corresponding oxoderivatives 4a-d. The structural assignments of the synthesized compounds were based on elemental, IR, 1H and 13C NMR analyses.
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.Recommanded Product: 2289-75-0, you can also check out more blogs about2289-75-0
Reference£º
Thiazole | C3H5046NS – PubChem,
Thiazole | chemical compound | Britannica