ORGANIC CHEMISTRY-PACKAGE >CUSTOM<
10th Edition
ISBN: 9781260028355
Author: Carey
Publisher: MCG CUSTOM
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 12, Problem 54P
Interpretation Introduction
Interpretation:
An explanation for the formation of the same anion being formed by the loss of the most acidic proton from both
Concept introduction:
The most acidic proton in cyclopentadiene and its derivatives (except
A tertiary carbanion is unstable because of the three inductive electron donating groups bonded to the negatively charged carbon.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Alkenyl halides such as vinyl bromide, CH2=CHBr, undergo neither SN1 nor SN2 reactions. What factors account for this lack of reactivity?
When 2-bromo-2-methylbutane is treated with a base, a mixture of 2-methyl-2-butene and 2-methyl-1-
butene is produced. When potassium hydroxide is the base, 2-methyl-1-butene accounts for 45% of the
product mixture. However, when potassium tert-butoxide is the base, 2-methyl-1-butene accounts for
70% of the product mixture. What percent of 2-methyl-1-butene would be in the mixture if potassium
propoxide were the base?
base
Br
A.
Less than 45%
B.
C.
45%
Between 45% and 70%
D.
More than 70%
Diphenylacetylene can be synthesized by the double dehydrohalogenation of 1,2-dibromo-1,2-diphenylethene. The sequence starting from (E)-1,2-diphenylethene consists of bromination to give the dibromide, followed by dehydrohalogenation to give a vinylic bromide, then a second dehydrohalogenation to give diphenylacetylene.(a) What is the structure, including stereochemistry, of the vinylic bromide?(b) If the sequence starts with (Z)-1,2-dibromo-1,2-diphenylethene, what is (are) the structure(s) of the intermediate dibromide(s)? What is the structure of the vinylic bromide?
Chapter 12 Solutions
ORGANIC CHEMISTRY-PACKAGE >CUSTOM<
Ch. 12.2 - Write structural formulas for toluene (C6H5CH3)...Ch. 12.3 - Prob. 2PCh. 12.5 - Prob. 3PCh. 12.5 - Prob. 4PCh. 12.6 - Prob. 5PCh. 12.6 - Chrysene is an aromatic hydrocarbon found in coal...Ch. 12.8 - Prob. 7PCh. 12.9 - As measured by their first-order rate constants,...Ch. 12.9 - Give the structure of the principal organic...Ch. 12.9 - Prob. 10P
Ch. 12.10 - Prob. 11PCh. 12.11 - Prob. 12PCh. 12.12 - Prob. 13PCh. 12.13 - Prob. 14PCh. 12.13 - Prob. 15PCh. 12.15 - The regioselectivity of Birch reduction of...Ch. 12.16 - Prob. 17PCh. 12.17 - Both cyclooctatetraene and styrene have the...Ch. 12.17 - Prob. 19PCh. 12.18 - Give an explanation for each of the following...Ch. 12.19 - Prob. 21PCh. 12.19 - What does a comparison of the heats of combustion...Ch. 12.20 - Prob. 23PCh. 12.20 - Prob. 24PCh. 12.20 - Prob. 25PCh. 12.20 - Prob. 26PCh. 12.20 - Prob. 27PCh. 12.20 - Prob. 28PCh. 12.21 - Prob. 29PCh. 12.21 - Prob. 30PCh. 12.22 - Prob. 31PCh. 12.22 - Prob. 32PCh. 12 - Write structural formulas and give the IUPAC names...Ch. 12 - Prob. 34PCh. 12 - Prob. 35PCh. 12 - Prob. 36PCh. 12 - Prob. 37PCh. 12 - Acridine is a heterocyclic aromatic compound...Ch. 12 - Prob. 39PCh. 12 - Prob. 40PCh. 12 - Prob. 41PCh. 12 - Evaluate each of the following processes applied...Ch. 12 - Prob. 43PCh. 12 - Prob. 44PCh. 12 - Prob. 45PCh. 12 - Prob. 46PCh. 12 - Anthracene undergoes a DielsAlder reaction with...Ch. 12 - Prob. 48PCh. 12 - Prob. 49PCh. 12 - The relative rates of reaction of ethane, toluene,...Ch. 12 - Both 1,2-dihydronaphthalene and...Ch. 12 - Prob. 52PCh. 12 - Prob. 53PCh. 12 - Prob. 54PCh. 12 - Prob. 55PCh. 12 - Prob. 56PCh. 12 - Each of the following reactions has been described...Ch. 12 - Prob. 58PCh. 12 - A compound was obtained from a natural product and...Ch. 12 - Prob. 60PCh. 12 - Suggest reagents suitable for carrying out each of...Ch. 12 - Prob. 62PCh. 12 - Prob. 63DSPCh. 12 - Prob. 64DSPCh. 12 - Prob. 65DSPCh. 12 - Prob. 66DSP
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
- Two substitution products result from the reaction between 3-chloro-3-methyl-1- butene with sodium acetate (CH3COO – Na +) in acetic acid under SN1. Identify the products.arrow_forwardThe 2-propenyl cation appears to be a primary carbocation, and yet it is considerably more stable than a 1° carbocation such as the 1-propyl cation. CH,=CH-CH, CH, CH, CH," 2-Propenyl cation 1-Propyl cation How would you account for the differences in the stability of the two carbocations?arrow_forwardAlkynes do not react directly with aqueous acid as do alkenes, but will do so in the presence of mercury(II) sulfate as a Lewis acid catalyst. The reaction occurs with Markovnikov regiochemistry, so the OH group adds to the more highly substituted carbon and the H adds to the less highly substituted carbon. The initial product of the reaction is a vinyl alcohol, also called an enol. The enol immediately rearranges to a more stable ketone via tautomerization. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions -X티 Hö: H-O -CH3 -CH3 H30*arrow_forward
- The reaction of 1-iodopropane with potassium thiocyanate (KSCN) in certain solvents results in the formation of two isomeric products, propylthiocyanate and propylisothiocyanate (see scheme below), via the SN2 reaction mechanism. Attempts to prepare a similar mixture of these same isomeric products (propylthiocyanate and propylisothiocyanate) starting from 1-propene is illustrated below. Despite the strong acidity of thiocyanic acid (recall pKa = 1.1), this addition reaction does not lead to either of the products indicated. Based on your knowledge of alkene addition reactions, explain this experimental result.arrow_forward4. A certain endothermic reaction X carried out room temperature (273K) has an enthalpy change of 20 Kcal/mol and an entropy change of 10 Kcal/K/mol. i) Calculate the Gibbs free energy (AG) of this reaction. ii) Is this reaction spontaneous or non-spontaneous? Give a reason for your answer 5. Thiomethane reacts with compound A via an SN1 reaction. Complete its reaction equation below. ii) SH Compound A ii) Draw the mechanism of reaction for this reaction. 6. Butyl Chloride undergoes an elimination reaction when reacted with sodium ethoxide to form butene. The reaction equation is given below with two reaction products A and B. low inevloa CI noitsups p *OEt B Which is the major product, and which is minor product. (Hint: Look up how the size of the base affects the elimination reaction product) Give a reason for your answer.arrow_forward6- In a 1H-NMR spectra on a scale of 0 – 10 ppm, Show the exact locations in ppm of 1-the saturated hydrocarbons, 2- the unsaturated hydrocarbons, 3- the halogenatedhydrocarbons and 4- the aromatic hydrocarbons.arrow_forward
- Markonikov's rule states that with the addition of a protic acid HX to an asymmetric alkene, the H or electropositive part gets attached to the carbon with more alkyl substituents, and the X group or electronegative part gets attached to the carbon with more hydrogens. O True O Falsearrow_forwardUse the extended version of Markovnikov’s rule to predict the regiochemistry (orientation) of electrophilic additions to alkenes.arrow_forwardProvide a short answer for why the secondary alkyl halide is the major product versus the tertiary alkyl halide from free radical halogention H₂C NBS H₂C, Br H₂C むーびず H peroxides Br + enantiomer + enantiomer Major Minorarrow_forward
- Predict and draw the structural formal of the product(s) of each of the reactions below. Butanal+H2 -------> Ptarrow_forwardFour alkenes are formed from the E1 reaction of 3-bromo-2,3-dimethylpentane and methanol. Draw the structures of the alkenes and rank them according to the amount that would be formed.arrow_forwardPropose a structure for an aromatic hydrocarbon, C10H14, that can form only one C10H13Cl product on substitution of a hydrogen on the aromatic ring with chlorine.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- 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
Organic Chemistry
Chemistry
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:Cengage Learning
Organic Chemistry: A Guided Inquiry
Chemistry
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Cengage Learning