Concept explainers
Rank the
Interpretation: The given alkenes shown in the ball-and-sticks models are to be ranked in order of increasing stability.
Concept introduction: Stability of alkenes is governed by Zaitsev rule. More substituted alkenes are more stable.
Answer to Problem 24P
The stability order of given alkenes is
Explanation of Solution
According to Zaitsev rule the more substituted or more alkylated alkene is more stable which makes the order of stability as tetra-substituted > tri-substituted > di-substituted > mono-substituted.Trans alkenes are more stable than cis alkenes as there substitutions are attached far from each other which makes them less sterically hindered. In the given question A is trans-disubstitued alkene, B is mono-substituted alkene while C is cis-disubstitued alkene.
Explain how you got molecular structure from the given ball and stick model.
Figure 1
So, A and C are more stable than B.A is more stable than C as A is trans isomer while C is cis isomer. Therefore, stability order of given alkenes is
Figure 2
The stability order of given alkenes is–
Want to see more full solutions like this?
Chapter 8 Solutions
LL ORG CHEM
Additional Science Textbook Solutions
General, Organic, & Biological Chemistry
Introduction to Chemistry
Essential Organic Chemistry (3rd Edition)
Chemistry: The Central Science (13th Edition)
Chemistry In Context
Chemistry by OpenStax (2015-05-04)
- 2. Explain the selectivity of the following reaction, which produces a single product despite both alkene carbons being equally substituted. H3C CF3 HBr CF3 H3C CF3 H3C Br- H3C only product -H CF3arrow_forwardMatch each alkene to its heat of hydrogenation.Alkenes: 3-methylbut-1-ene, 2-methylbut-1-ene, 2-methylbut-2-ene?H° (hydrogenation) kJ/mol: –119, –127, –112arrow_forwardFor alkenes A, B, C, and D: (a) Rank A—D in order of increasing heat of hydrogenation; (b) rank A—D in order of increasing rate of reaction with H2, Pd-C; (c) draw the products formed when each alkene is treated with ozone, followed by Zn, H2O.arrow_forward
- ● Rank the following alkenes from most to least stable. A 11 B ||| MacBook Air C IVarrow_forwardDraw the alkene that would react with the reagent given to account for the product formed. ? + + H₂O **** H₂S04 • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • In cases where there is more than one answer, just draw one. CH3 CH3 CHCCH3 | | OH CH3 +1arrow_forwardFor alkenes A, B, and C: (a) Rank A, B, and C in order of increasing heat of hydrogenation; (b) rank A, B, and C in order of increasing rate of reaction with Hạ, Pd-C; (c) draw the products formed when each alkene is treated with ozone, followed by Zn, H,0. A. Barrow_forward
- 6. Rank the alkenes in order of increasing stability. (1 = least stable, 4 = most stable)arrow_forwardRank the alkenes in order of decreasing heat of hydrogenation. A Highest heat of hydrogenation Lowest heat of hydrogenation Answer Bankarrow_forwardDraw the alkene that would react with the reagent given to account for the product formed. ? + HCI CH3 CH3CCH3 CI • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • In cases where there is more than one answer, just draw one. #[ ] در ChemDoodlearrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning