Top topic this week
Back to FAQs
Related FAQs
Frequently Asked Question
Questions asked by users might not always be phrased in the clearest way.
Why are 2,4-dinitrophenylhydrazones better derivatives than phenylhydrazones? Could you site a source for this including pages
Accepted Answer
2,4-dinitrophenylhydrazones are generally considered better derivatives than phenylhydrazones for the following reasons:
Higher Melting Points: The presence of the two nitro groups in 2,4-dinitrophenylhydrazones makes them more polar and therefore have higher melting points. This can be helpful for identification purposes, as melting point is often used to characterize organic compounds.
More Crystalline: The nitro groups also contribute to the formation of more crystalline derivatives, making them easier to handle and purify.
Increased Stability: The electron-withdrawing nature of the nitro groups increases the stability of the derivative, making it less prone to decomposition.
Source:
Vogel's Textbook of Practical Organic Chemistry: 5th Edition, pp. 593-594.
Articles you might like