Synthetic Route of 1569-16-0, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.1569-16-0, Name is 2-Methyl[1,8]-Naphthyridine, molecular formula is C9H8N2. In a article£¬once mentioned of 1569-16-0
The rates of methylation (forward reaction) of phthalazine (1), 1,8-naphthyridine (2), 1,10-phenanthroline (3), and of some ring methyl derivatives are compared with the rates of demethylation of the corresponding N-methyl quaternary iodides.It was observed for (2), and especially for (3), that a nitrogen lone pair in place of a CH group (quinoline and 8-methylquinoline, respectively) aids the forward reaction but does not have a commensurate retarding effect on the reverse process.In contrast to (3), 2,2′-bipyridine showed behaviour typical of alpha-substituted pyridines.The introduction of a 2-methyl group into (3) had an appreciable rate-enhancing effect on methylation (at N 10) and this is interpreted as evidence for lone-pair cooperativity in the forward reaction
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Reference£º
1,342-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N336 – PubChem