Introduction to General, Organic and Biochemistry
12th Edition
ISBN: 9780357391594
Author: Frederick A. Bettelheim; William H. Brown; Mary K. Campbell
Publisher: Cengage Learning US
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Chapter 12, Problem 53P
Interpretation Introduction
Interpretation:
The meaning of pheromone should be explained.
Concept Introduction:
The term derived from Greek words “pheroo” meaning “I carry” and “hormon” meaning stimulating. The term was coined by Karlson and Luscher.
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Answer
2. Provide a clear arrow-pushing mechanism for the following reactions. Do not skip proton
transfers, do not combine steps, and make sure your arrows are clear enough to be interpreted
without ambiguity.
a.
CH3
Ph
OEt
هد
Ph
CH3
Hint: the species on the left is an ynolate, which behaves a lot like an enolate.
b.
CH3
H3C
CH3
CH3
H3C
an unexpected product,
containing a single 9-
membered ring
the expected product,
containing two fused rings
H3C-I
(H3C)2CuLi
an enolate
Chapter 12 Solutions
Introduction to General, Organic and Biochemistry
Ch. 12.3 - Prob. 12.1QCCh. 12.3 - Prob. 12.2QCCh. 12.3 - Problem 12-3 Write the IUPAC name for each...Ch. 12.3 - Problem 12-4 Draw structural formulas for the...Ch. 12.3 - Problem 12-5 How many stereoisomers are possible...Ch. 12.5 - Prob. 12.6QCCh. 12.5 - Problem 12-7 Propose a two-step mechanism for the...Ch. 12.5 - Prob. 12.8QCCh. 12.5 - Problem 12-9 Propose a three-step reaction...Ch. 12.5 - Prob. 12.10QC
Ch. 12.8 - Prob. 12.11QCCh. 12 - Prob. 1PCh. 12 - Answer true or false. Both ethylene and acetylene...Ch. 12 - 12-13 What is the difference in structure between...Ch. 12 - There are three compounds with the molecular...Ch. 12 - 12-15 Name and draw structural formulas for all...Ch. 12 - Prob. 6PCh. 12 - Draw a structural formula for at least one...Ch. 12 - Each carbon atom in ethane and in ethylene is...Ch. 12 - Prob. 9PCh. 12 - Prob. 10PCh. 12 - Prob. 11PCh. 12 - 12*22 Draw a structural formula for each compound....Ch. 12 - 12-23 Draw a structural formula for each compound....Ch. 12 - Prob. 14PCh. 12 - 12-25 Write the IUPAC name for each unsaturated...Ch. 12 - Explain why each name is incorrect and then write...Ch. 12 - 12-27 Explain why each name is incorrect and then...Ch. 12 - Prob. 18PCh. 12 - 12-29 Which of these alkenes show cis-trans...Ch. 12 - 12-30 Which of these alkenes shows cis-trans...Ch. 12 - 12-31 Cyclodecene exists as both cis and trans...Ch. 12 - Arachidonic acid is a naturally occurring C„o...Ch. 12 - Prob. 23PCh. 12 - If you examine the structural formulas for the...Ch. 12 - 12*35 For each molecule that shows eis-trans...Ch. 12 - Name and draw structural formulas for all...Ch. 12 - /3-Ocimene, a triene found in the fragrance of...Ch. 12 - Answer true or false. Alkenes and alkynes are...Ch. 12 - Prob. 29PCh. 12 - 12-40 Define alkene addition reaction. Write an...Ch. 12 - Prob. 31PCh. 12 - 12-42 Complete these equations.Ch. 12 - Draw structural formulas for all possible...Ch. 12 - Prob. 34PCh. 12 - 12-45 Draw a structural formula for the product of...Ch. 12 - Draw a structural formula for an alkene with the...Ch. 12 - 12-47 Draw a structural formula for an alkene with...Ch. 12 - Draw a structural formula for an alkene with the...Ch. 12 - Prob. 39PCh. 12 - 12-50 Draw the structural formula of an alkene...Ch. 12 - Prob. 41PCh. 12 - Prob. 42PCh. 12 - Following is the structural formula of...Ch. 12 - Propose an explanation for the following...Ch. 12 - There are nine alkenes with the molecular formula...Ch. 12 - Prob. 46PCh. 12 - 12-57 Hydrocarbon A, Cf,Hs, reacts with 2 moles of...Ch. 12 - 12-58 Show how to convert ethylene to these...Ch. 12 - 12-59 Show how to convert 1-butene to these...Ch. 12 - Prob. 50PCh. 12 - 12-61 (Chemical Connections 12A) What is one...Ch. 12 - Prob. 52PCh. 12 - Prob. 53PCh. 12 - 12-64 (Chemical Connections 120 What is the...Ch. 12 - (Chemical Connections 120 Assume that 1 X IO-12 g...Ch. 12 - Prob. 56PCh. 12 - Prob. 57PCh. 12 - Prob. 58PCh. 12 - Prob. 59PCh. 12 - Prob. 60PCh. 12 - Prob. 61PCh. 12 - Suppose you have unlabeled bottles of benzene and...Ch. 12 - Prob. 63PCh. 12 - Prob. 64PCh. 12 - Answer true or false. (a) Phenols and alcohols...Ch. 12 - Prob. 66PCh. 12 - Prob. 67PCh. 12 - Prob. 68PCh. 12 - Prob. 69PCh. 12 - 12-67 (Chemical Connections 12D ) In which isomer...Ch. 12 - Prob. 71PCh. 12 - Prob. 72PCh. 12 - Prob. 73PCh. 12 - Prob. 74PCh. 12 - Prob. 75PCh. 12 - Prob. 76PCh. 12 - Prob. 77PCh. 12 - Prob. 78PCh. 12 - Prob. 79PCh. 12 - Prob. 80PCh. 12 - Prob. 81PCh. 12 - Prob. 82PCh. 12 - Prob. 83PCh. 12 - Prob. 84PCh. 12 - Prob. 85PCh. 12 - Prob. 86PCh. 12 - Propose a structural formula for the product!s)...Ch. 12 - Prob. 88PCh. 12 - Draw the structural formula of an alkene that...Ch. 12 - 12-77 Show how to convert cyclopentene into these...Ch. 12 - Prob. 91PCh. 12 - Prob. 92PCh. 12 - Prob. 93PCh. 12 - Prob. 94PCh. 12 - Prob. 95PCh. 12 - In omega-3 fatty adds, the last carbon of the last...Ch. 12 - Prob. 97PCh. 12 - Prob. 98P
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- b. H3C CH3 1. 2. H3O+ H3C MgBr H3Carrow_forwardPredict the major products of this reaction: excess H+ NaOH ? A Note that the first reactant is used in excess, that is, there is much more of the first reactant than the second. If there won't be any products, just check the box under the drawing area instead. Explanation Check Click and drag to start drawing a structure. © 2025 McGraw Hill LLC. All Rights Reserved. Terms of Use Privarrow_forward1. For each of the reaction "railroads" below, you are either asked to give the structure(s) of the starting material(s) or product(s), or provide reagents/conditions to accomplish the transformation, as indicated by the boxes. a. NaOMe H+ .CO,H HO₂C MeOH (excess) MeOH H3C Br يع CH3 1. LiAlH4 2. H3O+ 3. PBг3 H3C 1. Et-Li 2. H3O+ -CO₂Me -CO₂Me OH CH3 CH3 ল CH3arrow_forward
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