Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 4-Methyl-1,8-naphthyridine, is researched, Molecular C9H8N2, CAS is 1569-17-1, about Naphthyridine chemistry. VIII. Mass spectra of the 1,x-naphthyridines and some of their methyl derivatives.Product Details of 1569-17-1.
The mass spectra of the four parent 1,x-naphthyridines, the 2-, 3-, and 4-monomethyl-1,5-, 1,6-, and 1,8-naphthyridines, seven dimethyl-1,8-naphthyridines, and one trimethyl-1,8-naphthyridine are reported. Evidence for an azatropylium ion intermediate in the fragmentation of the methyl compounds is presented. The fragmentation modes of the naphthyridines are similar to those for the quinolines in addition to several new processes.
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Reference:
1,8-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N2 – PubChem