4 Questions
Which of the following compounds satisfies Huckel's rule (4n+2)?
Pyrrole
In which of the following compounds does the second free pair of electrons on the heteroatom occupy the sp2 orbital perpendicular to the electron density of the ring?
Furan
Which compound has the highest resonance energy among Pyrrole, Furan, and Thiophene?
Furan
Which heterocyclic compound is characterized by aromatic properties unlike Cyclopentadiene?
Pyrrole
Study Notes
Huckel's Rule and Heterocyclic Compounds
- Huckel's rule is satisfied by compounds with 4n+2 electrons, where n is an integer.
- The second free pair of electrons on the heteroatom occupies the sp2 orbital perpendicular to the electron density of the ring in Furan.
- Thiophene has the highest resonance energy among Pyrrole, Furan, and Thiophene.
- Pyrrole is characterized by aromatic properties unlike Cyclopentadiene, which does not exhibit aromatic properties.
Test your knowledge on pyrrole, furan, and thiophene in the context of heterocyclic chemistry. Explore the aromatic properties and structural characteristics of these compounds.
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