Organic Chemistry
9th Edition
ISBN: 9781305080485
Author: John E. McMurry
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 6.SE, Problem 47AP
The naturally occurring molecule α-terpineol is biosynthesized by a route that includes the following step:
(a) Propose a likely structure for the isomeric carbocation intermediate.
(b) Show the mechanism of each step in the biosynthetic pathway, using curved arrows to indicate electron flow.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
4 Show how the compound thiodiazine~C21H26N2S2~decomposes anaerobically and how these end products in turn decompose aerobically to stabilized sulfur and nitrogen compounds.
Propose the structure of the following:
a. An alkane, C6H14
b. A crylic saturated hydrocarbon, C6H12
c. A diene (dialkene), C5H8
d. A keto alkene, C5H8O
Drawing on what you know about the stereochemistry of alkene addition reactions, a. write the mechanism for the reaction of 2-butyne with one equivalent of Br2. b. predict the configuration of the product of the reaction.
Chapter 6 Solutions
Organic Chemistry
Ch. 6.1 - Prob. 1PCh. 6.3 - Prob. 2PCh. 6.3 - Using curved fishhook arrows, propose a mechanism...Ch. 6.4 - Prob. 4PCh. 6.4 - An electrostatic potential map of boron...Ch. 6.5 - What product would you expect from reaction of...Ch. 6.5 - Reaction of HBr with 2-methylpropene yields...Ch. 6.6 - Prob. 8PCh. 6.6 - Predict the products of the following polar...Ch. 6.7 - Which reaction is more energetically favored, one...
Ch. 6.7 - Prob. 11PCh. 6.9 - Which reaction is faster, one with ∆G‡ = +45...Ch. 6.10 - Prob. 13PCh. 6.SE - Prob. 14VCCh. 6.SE - Prob. 15VCCh. 6.SE - Prob. 16VCCh. 6.SE - Look at the following energy diagram: (a) Is...Ch. 6.SE - Look at the following energy diagram for an...Ch. 6.SE - What is the difference between a transition state...Ch. 6.SE - Prob. 20EDRMCh. 6.SE - Prob. 21EDRMCh. 6.SE - Draw an energy diagram for a two-step exergonic...Ch. 6.SE - Draw an energy diagram for a reaction with keq =...Ch. 6.SE - The addition of water to ethylene to yield ethanol...Ch. 6.SE - When isopropylidenecyclohexane is treated with...Ch. 6.SE - Prob. 26EDRMCh. 6.SE - Draw the electron-pushing mechanism for each...Ch. 6.SE - Draw the complete mechanism for each polar...Ch. 6.SE - Prob. 29EDRMCh. 6.SE - Identify the functional groups in the following...Ch. 6.SE - Identify the following reactions as additions,...Ch. 6.SE - Identify the likely electrophilic and nucleophilic...Ch. 6.SE - For each reaction below identify the electrophile...Ch. 6.SE - Prob. 34APCh. 6.SE - Follow the flow of electrons indicated by the...Ch. 6.SE - Prob. 36APCh. 6.SE - Prob. 37APCh. 6.SE - Despite the limitations of radical chlorination of...Ch. 6.SE - Prob. 39APCh. 6.SE - Answer question 6-39 taking all stereoisomers into...Ch. 6.SE - Prob. 41APCh. 6.SE - Prob. 42APCh. 6.SE - Prob. 43APCh. 6.SE - The reaction of hydroxide ion with chloromethane...Ch. 6.SE - Prob. 45APCh. 6.SE - Ammonia reacts with acetyl chloride (CH3COCl) to...Ch. 6.SE - The naturally occurring molecule α-terpineol is...Ch. 6.SE - Prob. 48APCh. 6.SE - Prob. 49APCh. 6.SE - Draw the structures of the two carbocation...
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
- Draw and name the seven aldehydes and ketones with the formula C5H10O. Which are chiral?arrow_forwardCompound A, C 10H 18O, undergoes reaction with dilute H 2SO 4 at 50 °C to yield a mixture of two alkenes, C 10H 16. The major alkene B, gives only cyclopentanone after ozone treatment followed by reduction with zinc in acetic acid. Which of the following reactions are correct. Can be more than one answerarrow_forward4. Compound A has the formula C 8H 8. It reacts rapidly with KMnO 4 to give CO 2 and a carboxylic acid, B (C 7H 6O 2), but reacts with only 1 molar equivalent of H 2 on catalytic hydrogenation over a palladium catalyst. On hydrogenation under conditions that reduce aromatic rings, 4, equivalents of H 2 are taken up and hydrocarbon C (C 8H 16) is produced. What are the structures of A, B, and C.arrow_forward
- Naturally occurring compounds called terpenoids, which we'll discuss in Section 27-5, are biosynthesized by a pathway that involves loss of CO2 from 3-phosphomevalonate 5-diphosphate to yield isopentenyl diphosphate. Use curved arrows to show the mechanism of this reaction.arrow_forwardThe first step in the metabolism of glycerol, formed by digestion of fats, is phosphorylation of the pro-R—CH2OH group by reaction with adenosine triphosphate (ATP) to give the corresponding glycerol phosphate plus adenosine diphosphate (ADP). Show the stereochemistry of the product.arrow_forwardChemical compound A is an alkene that when treated with ozone followed by treatment of Zn in HOAc produces only (CH3CH2CH2) 2C = O. What is the structure of A? If A is reacted with peroxyacetic acid, what product would be obtained? Write the corresponding structure. Is this substance optically active? Please include a detailed explanation.arrow_forward
- Reaction of HBr with 2-methylpropene yields 2-bromopropane. What is the structure of the carbocation intermediate formed during the reaction? Show the mechanism of the reaction.arrow_forwardCompound AA has a molecular formula of C3H6O and gives a positiveresult using Tollen’s reagent. The reaction of compound AA with hotacidified potassium permanganate, KMnO4 gives compound BB. Thecatalytic hydrogenation of compound AA with nickel, Ni producedcompound CC. The reaction of compound BB with ethanamine,CH3CH2NH2 produces compound DD I) Draw the structural formula of compounds AA, BB, CC and DD. 2)Name the type of chemical reaction for the formation of compound CC.arrow_forward(10pts) Compound A, C10H16, was found to be optically active. On catalytic reduction over a palladium catalyst, 2 equivalents of hydrogen were absorbed, yielding compound B, CioH2o. On ozonolysis of A, two fragments were obtained. One fragment was identified as acetic acid (CHCOOH). The other fragment, compound C, was an optically active carboxylic acid, C8H14O2. Write reactions, and draw the correct structures for A-C, explain your answer in detail.arrow_forward
- Terpin, prepared commercially by the acid-catalyzed hydration of limonene, is used medicinally as an expectorant for coughs. (a) Propose a structural formula for terpin and a mechanism for its formation. (b) How many cis, trans isomers are possible for the structural formula you propose?arrow_forwardAmines are converted into alkenes by a two-step process called Hofmann elimination. SN2 reaction of the amine with an excess of CH3I in the first step yields an intermediate that undergoes E2 reaction when treated with silver oxide as base. Pentylamine, for example, yields 1-pentene. Propose a structure for the intermediate, and explain why it readily undergoes elimination.arrow_forwardCarboxylic acids having a second carbonyl group two atoms away lose CO2 (decarboxylate) through an intermediate enolate ion when treated with base. Write the mechanism of this decarboxylation reaction using curved arrows to show the electron flow in each step.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 Learning
Organic Chemistry
Chemistry
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:Cengage Learning
General Chemistry | Acids & Bases; Author: Ninja Nerd;https://www.youtube.com/watch?v=AOr_5tbgfQ0;License: Standard YouTube License, CC-BY