Concept explainers
(a)
Interpretation: The given radicals are to be ranked in order of increasing stability.
Concept introduction: When one alkyl group is linked to the carbon radical, then the radical is termed as primary radical. When two alkyl groups are linked to the carbon radical, the radical is termed as secondary radical and when three alkyl groups are linked to the carbon radical, the radical is termed as tertiary radical.
(b)
Interpretation: The given radicals are to be ranked in order of increasing stability.
Concept introduction: When one alkyl group is linked to the carbon radical, then the radical is termed as primary radical. When two alkyl groups are linked to the carbon radical, the radical is termed as secondary radical and when three alkyl groups are linked to the carbon radical, the radical is termed as tertiary radical.
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Chapter 15 Solutions
Organic Chemistry
- The 1,2‑dibromide is synthesized from an alkene starting material. Draw the alkene starting material. Clearly, show stereochemistry of the alkene.arrow_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_forward||| IV Identify the least stable carbocation. A) I B) II C) III D) IVarrow_forward
- Rank 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_forwardRank the following groups in order of decreasing priority. −COOH, −CH2OH, −H, −CHOarrow_forwarddraw the two possible carbocations that can form when this alkene reacts with a strong acid (such as HBr or H3O+). of the two structures you drew, circle the more stable carbocationarrow_forward
- Rank the following species in order of decreasing nucleophilicity in aqueous solution CH3COO-, HO-, CH3OH, CH3S- Select one: a. CH3S- > HO- > CH3COO- > CH3OH b. CH3S- > CH3COO- > CH3OH > HO- c. HO- > CH3COO- > CH3OH > CH3S- d. CH3COO- > CH3OH > CH3S- > HO- e. CH3OH > CH3S- > HO- > CH3COO-arrow_forwardGive a test to distinguish between propan-2-one and pentan-3-one.arrow_forwarda. How many s bond orbitals are available for overlap with the vacant p orbital in 1. the isobutyl cation? 2. the n-butyl cation? 3. the sec-butyl cation? b. Which of the carbocations in part a is most stable?arrow_forward
- Which is the better leaving group in each pair?a. Cl-, I-b. NH3, -NH2c. H2O, H2Sarrow_forwardDraw an Energy diagram for an E1 reaction: (CH3)3CI + H2O ⇢ (CH3)2C=CH2+ H3O+ + I−arrow_forwardAn ion with a positively charged nitrogen atom in a three-membered ring is called an aziridinium ion. The following aziridinium ion reacts with sodiummethoxide to form compounds A and B: If a small amount of aqueous Br2 is added to A, the reddish color of Br2 persists, but the color disappears when Br2 is added to B. When the aziridinium ion reacts with methanol, only A is formed. Identify A and B.arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningOrganic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning