PKG ORGANIC CHEMISTRY
5th Edition
ISBN: 9781259963667
Author: SMITH
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 12, Problem 12.34P
Interpretation Introduction
Interpretation: The given
Concept introduction: Hydrogenation reaction is exothermic in nature due to the fact that the bonds are stronger in product than in reactant. Heat of hydrogenation can be used as measure for relative stability of alkenes when they are reduced to same
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Match 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, –112
∆H° values obtained for a series of similar reactions are one set of experimental data used to determine the relative stability of alkenes. Explain how the following data suggest that cis-but-2-ene is more stable than but-1-ene (Section 12.3A).
Dehydrohalogenation of 1-chloro-1-methylcyclopropane affords two alkenes (A and B) as products. Explain why A is the major product despite the fact that it contains the less substituted double bond.
Chapter 12 Solutions
PKG ORGANIC CHEMISTRY
Ch. 12 - Prob. 12.1PCh. 12 - Problem 12.2 What alkane is formed when each...Ch. 12 - Prob. 12.3PCh. 12 - Prob. 12.4PCh. 12 - Prob. 12.5PCh. 12 - Prob. 12.6PCh. 12 - Compound Molecular formula before...Ch. 12 - Problem 12.8 Draw the products formed when...Ch. 12 - Prob. 12.9PCh. 12 - Prob. 12.10P
Ch. 12 - Problem 12.11 (a) Draw the structure of a compound...Ch. 12 - Prob. 12.12PCh. 12 - Prob. 12.13PCh. 12 - Problem 12.14 Draw the products of each...Ch. 12 - Prob. 12.15PCh. 12 - Problem 12.16 Draw all stereoisomers formed when...Ch. 12 - Prob. 12.17PCh. 12 - Problem 12.18 Draw the products formed when both...Ch. 12 - Problem 12.19 Draw the products formed when each...Ch. 12 - Prob. 12.20PCh. 12 - Prob. 12.21PCh. 12 - Problem 12.22 Draw the products formed when each...Ch. 12 - Prob. 12.23PCh. 12 - Problem 12.24 Draw the organic products in each of...Ch. 12 - Prob. 12.25PCh. 12 - Prob. 12.26PCh. 12 - Problem 12.27 Draw the products of each Sharpless...Ch. 12 - Prob. 12.28PCh. 12 - 12.29 Draw the products formed when A is treated...Ch. 12 - Prob. 12.30PCh. 12 - 12.31 Devise a synthesis of the following compound...Ch. 12 - Prob. 12.32PCh. 12 - Prob. 12.33PCh. 12 - Prob. 12.34PCh. 12 - Prob. 12.35PCh. 12 - Prob. 12.36PCh. 12 - 12.37 Stearidonic acid (C18H28O2) is an...Ch. 12 - Draw the organic products formed when cyclopentene...Ch. 12 - Draw the organic products formed when allylic...Ch. 12 - Draw the organic products formed in each reaction....Ch. 12 - Prob. 12.41PCh. 12 - Prob. 12.42PCh. 12 - Prob. 12.43PCh. 12 - What alkene is needed to synthesize each 1,2-diol...Ch. 12 - Prob. 12.45PCh. 12 - 12.46 (a)What product is formed in Step [1] of the...Ch. 12 - Draw the products formed after Steps 1 and 2 in...Ch. 12 - 12.48 Draw the products formed in each oxidative...Ch. 12 - What alkene or alkyne yields each set of products...Ch. 12 - Prob. 12.50PCh. 12 - Prob. 12.51PCh. 12 - Prob. 12.52PCh. 12 - Prob. 12.53PCh. 12 - 12.54 An unknown compound A of molecular formula ...Ch. 12 - 12.55 DHA is a fatty acid derived from fish oil...Ch. 12 - Prob. 12.56PCh. 12 - 12.57 Draw the product of each asymmetric...Ch. 12 - 12.58 Epoxidation of the following allylic alcohol...Ch. 12 - Prob. 12.59PCh. 12 - 12.60 Identify A in the following reaction...Ch. 12 - Prob. 12.61PCh. 12 - 12.62 It is sometimes necessary to isomerize a cis...Ch. 12 - 12.63 Devise a synthesis of each compound from...Ch. 12 - Prob. 12.64PCh. 12 - Prob. 12.65PCh. 12 - 12.66 Devise a synthesis of each compound from the...Ch. 12 - Prob. 12.67PCh. 12 - Prob. 12.68PCh. 12 - 12.69 Devise a synthesis of each compound from as...Ch. 12 - Prob. 12.70PCh. 12 - Prob. 12.71PCh. 12 - 12.72 Draw a stepwise mechanism for the following...Ch. 12 - Prob. 12.73PCh. 12 - Prob. 12.74PCh. 12 - 12.75 Sharpless epoxidation of allylic alcohol X...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Predict the energy difference between pent-1-ene and cis-pent-2-ene.arrow_forward4. The enthalpies, AH°, for the hydrogenation of three alkenes are shown below: Alkene A: -50 kcal/mole Alkene B: -60 kcal/mole Alkene C: -70 kcal/mole Which alkene is the least stable and why?arrow_forward1. Consider the following reaction - Dehydrogenation of Methyl Cyclohexane (MCH) to Toluene (TOL) using a Precious Metal (Pt) supported on Alumina. CH3 CH3 2 () + 3 H₂ Typically, hydrogenation of a cyclo-alkane, like MCH, occurs in 3 or more stages, where one bond is dehydrogenated per stage, eventually resulting in the dehydrogenation of 3 bonds. Strong adsorption of MCH is likely to occur, but the adsorption of hydrogen (either as a molecule on a single site OR as an atom on a single site) is unclear. Therefore, in this question, two types of reaction mechanisms are to be considered, as discussed below: (a) You are to first propose a reaction mechanism which includes adsorption, surface reaction, and desorption. For each of the following cases, please write down a full set of elementary reaction mechanisms. (0) Extraction of Hydrogen in 3 stages, based on dehydrogenation of each bond-where the ensuing hydrogen product is adsorbed as a molecule on a single site, in one step.…arrow_forward
- Which alkene is required to complete the reaction in Figure 10? * A B C D All of these alkenes will form this alcohol.arrow_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_forward● Rank the following alkenes from most to least stable. A 11 B ||| MacBook Air C IVarrow_forward
- 5. Compounds A and B are both hydrogenated to methylcyclohexane. Which compound has the larger heat of hydrogenation? Which compound is more stable? CH3 CH2 A Вarrow_forwardRank the alkenes from most stable to least stable.arrow_forwardRank the alkenes below from most stable to least stable.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning
Organic Chemistry: A Guided Inquiry
Chemistry
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Cengage Learning