5 Questions
Which of the following compounds possesses a considerable aromatic character due to delocalization of 4π- electrons and 2 paired electrons donated by the heteroatom?
Furan
According to Hückel's criteria for aromaticity, which of the following is a requirement for a compound to be considered aromatic?
It must have one p orbital on each atom of the ring.
In the five membered systems, pyrrole, thiophene, and furan, which heterocycle has the greatest electron donating tendency due to its lower electronegativity?
Thiophene
Which compound presents an additional heterocycle with an unshared pair of electrons participating in the aromatic system?
Pyrrole
According to Hückel's criteria for aromaticity, which of the following is not a requirement for a compound to be considered aromatic?
It must have at least one double bond.
Test your knowledge about furan, pyrrole, and thiophene, three common 5-membered heterocycles containing oxygen, nitrogen, and sulfur respectively. Explore their aromatic character and the delocalization of electrons in these compounds.
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