(a)
Interpretation:
The reason for the opposite direction of the dipole moment of pyrrole and pyridine is to be stated.
Concept introduction:
Pyrrole is a five-membered cyclic
(b)
Interpretation:
The reason as to why pyrrole and furan have opposite direction of dipole moment is to be stated.
Concept introduction:
Pyrrole is a five-membered cyclic aromatic ring contains one nitrogen atom instead of a carbon atom. Similarly, furan is a five-membered cyclic aromatic ring contains one oxygen atom instead of a carbon atom. The dipole moment is used to measure the polarity of the bond in the molecule. It is defined as the product of the separation of charges and its magnitude. It is represented as shown below.
(c)
Interpretation:
Whether the dipole moment of
Concept introduction:
The dipole moment is used to measure the polarity of the bond in the molecule. It is defined as the product of the separation of charges and its magnitude. It is represented as shown below.
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Organic Chemistry Study Guide and Solutions
- Without looking at a table of pKa data, rank the following compounds in order of increasing acidity. (a) Benzoic acid, p-methylbenzoic acid, p-chlorobenzoic acid (b) p-Nitrobenzoic acid, acetic acid, benzoic acid Explain in each case your choice for the highest acidity.arrow_forward(b) Suggest a reasonable biosynthesis for the naturally occurring alkaloid coniine (isolated from hemlock), starting from octanoic acid. Coniinearrow_forward(a) Explain how pyrrole is isoelectronic with the cyclopentadienyl anion.(b) Specifically, what is the difference between the cyclopentadienyl anion and pyrrole?(c) Draw resonance forms to show the charge distribution on the pyrrole structure.arrow_forward
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- Treatment of 1,3,6-cyclononatriene (Compound 1), or its dimethyl derivative (Compound 2), with potassium amide (KNH₂) in liquid ammonia results in the formation of anion 1a or 2a, respectively (J. Am. Chem. Soc. 1973, 95, 3437-3438): 9 15.85a 2 6 3 4 5 Compound 1 (R=H) Compound 2 (R=CH3) * You answer is incorrect. KNH₂ KNH₂ 1a (anion) 2a (anion) Of the following, which is NOT one of the four resonance structures of 1a?arrow_forward(a) Account for the following :(i) Propanal is more reactive than propanone towards nucleophilic reagents.(ii) Electrophilic substitution in benzoic acid takes place at meta position.(iii) Carboxylic acids do not give characteristic reactions of carbonyl group.(b) Give simple chemical test to distinguish between the following pairs of compounds:(i) Acetophenone and benzaldehyde(ii) Benzoic acid and ethylbenzoate.arrow_forwardJj.198.arrow_forward