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Why are 2,4-dinitrophenylhydrazones better derivatives than phenylhydrazones
Accepted Answer
2,4-dinitrophenylhydrazones are generally considered better derivatives for carbonyl compounds than phenylhydrazones because of their higher melting points and increased crystallinity. This is due to the electron-withdrawing nitro groups on the phenyl ring, which make the 2,4-dinitrophenylhydrazone more polar and thus more easily crystallized. The higher melting points and improved crystallinity facilitate easier purification and identification of the carbonyl compound.
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