Concept explainers
(a)
Interpretation:
The relative priorities for the given set of groups has to be assigned.
Concept introduction:
According to Cahn-Ingold-Prelog system,
The group attached to asymmetric center should be ranked based on the
(b)
Interpretation:
The relative priorities for the given set of groups has to be assigned.
Concept introduction:
According to Cahn-Ingold-Prelog system,
The group attached to asymmetric center should be ranked based on the atomic number of atom which directly connected to asymmetric center. The higher the atomic number of atom, higher the priority. If there is tie, then consider the next atoms attached to the connected atom and so on.
(c)
Interpretation:
The relative priorities for the given set of groups has to be assigned.
Concept introduction:
According to Cahn-Ingold-Prelog system,
The group attached to asymmetric center should be ranked based on the atomic number of atom which directly connected to asymmetric center. The higher the atomic number of atom, higher the priority. If there is tie, then consider the next atoms attached to the connected atom and so on.
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Chapter 4 Solutions
Essential Organic Chemistry, Global Edition
- Rank the set of substituents below in order of priority according to the Cahn-Ingold-Prelog sequence rules.1 = highest priority.(a) -ch3 (b) -br (c) -h (d) -iarrow_forwardRank the following groups in order of decreasing priority. a. – COOH, – H, – NH2, – OH b. – H, – CH3, – Cl, – CH2CI c. -CH2CH3, -CH3, -H, -CH(CH3)2 d. – CH = CH2, – CH3, – C ≡ CH, – Harrow_forwardOrder the following substituents from highest priority to lowest priority: CH3, OH, H,F. Use the Cahn-Ingold-Prelog priority system. a. F, CH3, OH, H b. H, CH3, F, OH c. F, OH, CH3, H d. H, CH3, OH, Farrow_forward
- Using Cahn-Ingold-Prelog rules, rank these substituents from highest priority to lowest priority. A) III > I > II B) II > I > III C) III > II > I D) I > II > III E) II > III > Iarrow_forwardArrange the following group in order of increasing priority. Q) -OCH3 -CH(CH3)2 -B(CH2CH3)2 -Harrow_forwardWhich group is of lower priority than –CH=CH2 according to Cahn-Ingold-Prelog rules. –CH=C(CH3)2 –C(CH3)3 –CH(CH3)2 –CH=CHCl a b c darrow_forward
- Rank the following groups in order of decreasing priority. −C≡CH, −CH(CH3)2, −CH2CH3, −CH=CH2arrow_forwardWhich group in each pair is assigned the higher priority in R,S nomenclature? a.−CD3, −CH3 b.−CH(CH3)2, −CH2OH c.−CH2Cl, −CH2CH2CH2Br d.−CH2NH2, −NHCH3arrow_forwardWhich group in each pair is assigned the higher priority in R,S nomenclature? a. – CD3, – CH3 b. – CH(CH3)2, – CHOH c. – CH2Cl, – CH2CH2CH2Br d. – CH2NH2, – NHCH3arrow_forward
- Rank the following groups in order of decreasing priority. −F, −NH2, −CH3, −OHarrow_forwardArrange each set in order of decreasing priority using Cahn-Ingold-Prelog priority rules (1 for highest priority). d) _____-Cl, _____-OH, _____-H, _____-NH2 e) _____–CO2CH3, _____-CO2H, _____-OH, _____-OCH3arrow_forwardFor the given ee values, calculate the percentage of each enantiomer present.a. 90% eeb. 99% eec. 60% eearrow_forward
Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning