Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. Introducing a new discovery about 3521-62-8, Name is Erythromycinestolate, Formula: C52H97NO18S.
Reactions of eight trifluoromethyl substituted pyridines with alkyllithium reagents were examined. 3-Trifluoromethylpyridine, 3,4-, and 3,5-bis(trifluoromethyl)pyridines undergo regioselective lithiation at the 2-position thus providing an easy access to 2-functionalised trifluoromethylpyridines. The reactions of 2-trifluoromethylpyridine, 2,4-, 2,6-bis(trifluoromethyl)-pyridines and 2,4,6-tris(trifluoromethyl)pyridine result exclusively by addition of RLi to the -N=C-bond. 2,5-Bis(trifluoromethylpyridine), depending on the reaction temperature, gives either 2-lithio derivative or an adduct.
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.Formula: C52H97NO18S, you can also check out more blogs about3521-62-8
Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics