Organic Chemistry
6th Edition
ISBN: 9781936221349
Author: Marc Loudon, Jim Parise
Publisher: W. H. Freeman
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Question
Chapter 17, Problem 17.21P
Interpretation Introduction
Interpretation:
The mechanism for sythesis of lanosterol is to be stated.
Concept introduction:
Isoprene unit contains five carbon atoms. The carbon atoms of isoprene unit are connected by sigma bond or pi bond. Terpenes and terpenoids contain unequal number of isoprene units. Lanosterol is triterpenoid with four rings. It is used to derive animal and fungal steroids.
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Students have asked these similar questions
Answer BOTH parts of this question.
(a) Briefly explain the origin of amine basicity. Using resonance structures explain why
aniline is a weaker base than methylamine.
(b) Draw the structure of compound X and provide a curly arrow mechanism for the
reduction in Scheme 1.
X
1. NaBH4
2. H₂O
Scheme 1
OH
(a) Which is more reactive towards Electrophilic aromatic substitution (EAS)?
(b) Which of the following is a a meta-substituted compound?
(c) Which is the least reactive towards Electrophilic aromatic substitution (EAS)?
(d) Which is an ortho-substituted compound?
18.18 Provide a structural formula for the product from each of the following reactions.
(a)
(c)
(e
(1) LDA
(2) CH,CH,I
NaH
CI
(b)
(d) O.
(f
Br, CH,CO,H
Br, (excess), NaOH
Chapter 17 Solutions
Organic Chemistry
Ch. 17 - Prob. 17.1PCh. 17 - Prob. 17.2PCh. 17 - Prob. 17.3PCh. 17 - Prob. 17.4PCh. 17 - Prob. 17.5PCh. 17 - Prob. 17.6PCh. 17 - Prob. 17.7PCh. 17 - Prob. 17.8PCh. 17 - Prob. 17.9PCh. 17 - Prob. 17.10P
Ch. 17 - Prob. 17.11PCh. 17 - Prob. 17.12PCh. 17 - Prob. 17.13PCh. 17 - Prob. 17.14PCh. 17 - Prob. 17.15PCh. 17 - Prob. 17.16PCh. 17 - Prob. 17.17PCh. 17 - Prob. 17.18PCh. 17 - Prob. 17.19PCh. 17 - Prob. 17.20PCh. 17 - Prob. 17.21PCh. 17 - Prob. 17.22APCh. 17 - Prob. 17.23APCh. 17 - Prob. 17.24APCh. 17 - Prob. 17.25APCh. 17 - Prob. 17.26APCh. 17 - Prob. 17.27APCh. 17 - Prob. 17.28APCh. 17 - Prob. 17.29APCh. 17 - Prob. 17.30APCh. 17 - Prob. 17.31APCh. 17 - Prob. 17.32APCh. 17 - Prob. 17.33APCh. 17 - Prob. 17.35APCh. 17 - Prob. 17.36APCh. 17 - Prob. 17.37APCh. 17 - Prob. 17.38APCh. 17 - Prob. 17.39APCh. 17 - Prob. 17.40APCh. 17 - Prob. 17.41APCh. 17 - Prob. 17.42APCh. 17 - Prob. 17.43APCh. 17 - Prob. 17.44APCh. 17 - Prob. 17.45APCh. 17 - Prob. 17.46APCh. 17 - Prob. 17.47APCh. 17 - Prob. 17.48APCh. 17 - Prob. 17.49APCh. 17 - Prob. 17.50APCh. 17 - Prob. 17.51APCh. 17 - Prob. 17.52APCh. 17 - Prob. 17.53APCh. 17 - Prob. 17.54APCh. 17 - Prob. 17.55APCh. 17 - Prob. 17.56APCh. 17 - Prob. 17.57APCh. 17 - Prob. 17.58APCh. 17 - Prob. 17.59AP
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