Concept explainers
(a)
Interpretation: The all reasonable resonance structures for pyrrole are to be drawn and an explanation that corresponds to the less resonance stabilization of pyrrole than benzene is to be stated.
Concept introduction: The delocalization of bond, lone pair, or free electrons from one atom to another is known as resonance. Pyrrole is a heterocyclic compound that contains
(b)
Interpretation: The all reasonable resonance structures for furan are to be drawn and an explanation that corresponds to the less resonance stabilization of furan than pyrrole is to be stated.
Concept introduction: The delocalization of bond, lone pair, or free electrons from one atom to another is known as resonance. Both pyrrole and furan are heterocyclic compounds that contain
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Organic Chemistry (6th Edition)
- Zolpidem (trade name Ambien) promotes the rapid onset of sleep, making it a widely prescribed drug for treating insomnia. a.In what type of orbital does the lone pair on each N atom in the heterocycle reside? b. Explain why the bicyclic ring system that contains both N atoms is aromatic. c.Draw all reasonable resonance structures for the bicyclic ring system.arrow_forwardplease explain why they are aromatic.?arrow_forwardWhich compound? a or b and whyarrow_forward
- Draw the structure of A, an intermediate in the synthesis of the antipsychotic drug risperidone. Explain why three rings in risperidone are considered aromatic.arrow_forwardExplain why compound A is much more stable than compound B. A Barrow_forwardFor. A and b only what is is the proper IUPAC namesarrow_forward
- B3) Classify each compound as Aromatic, Antiaromatic or nonaromatic, provide the # of pi electrons in each compound, and provide the reason for your classification. A) B) Compound Pi Electrons Classification Reason A B Carrow_forwarda) Draw the arrow-pushing mechanism for the reaction of hydronium with ethanol. Include all lone pairs and non-zero formal charges. b) Draw the arrow-pushing mechanism for the reaction of NaNH₂ with chloroform. Include all lone pairs and non-zero formal charges. c) Draw the arrow-pushing mechanism for the reaction of sodium hydroxide with phenol. Include all lone pairs and non-zero formal charges. d) Are any of the above reactions reversible? Do any of them go to completion? Explain your answer.arrow_forwardExplain why compound A is much more stable than compound B.?arrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning