Organic Chemistry
Organic Chemistry
5th Edition
ISBN: 9780078021558
Author: Janice Gorzynski Smith Dr.
Publisher: McGraw-Hill Education
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Chapter 23, Problem 23.67P
Interpretation Introduction

Interpretation: The product formed by the treatment of compound A with LDA followed by CH3CH2I is to be predicted. The multistep method for the conversion of A to B is to be devised.

Concept introduction: Lithium diisopropylamide (LDA) is a sterically hindered strong base. In an unsymmetrical ketone, it abstracts hydrogen from least substituted carbon to form kinetic product.

Alkylation of aldehydes and ketones takes place in the presence of a strong base. The use of appropriate base, solvent and temperature can yield one major product regioselectively. The first step is abstraction of proton and second step is attack of electrophile to form alkylated product.

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Chapter 23 Solutions

Organic Chemistry

Ch. 23 - Problem 23.11 Draw the products of each...Ch. 23 - Problem 23.12 Draw the products of each reaction....Ch. 23 - Prob. 23.13PCh. 23 - Prob. 23.14PCh. 23 - Prob. 23.15PCh. 23 - Prob. 23.16PCh. 23 - Prob. 23.17PCh. 23 - Problem 23.18 How can pentan-2-one be converted...Ch. 23 - Problem 23.19 Identify A, B, and C, intermediates...Ch. 23 - Problem 23.20 Which of the following compounds...Ch. 23 - Problem 23.21 Draw the products of each...Ch. 23 - Prob. 23.22PCh. 23 - Prob. 23.23PCh. 23 - Prob. 23.24PCh. 23 - Prob. 23.25PCh. 23 - Prob. 23.26PCh. 23 - Prob. 23.27PCh. 23 - Prob. 23.28PCh. 23 - 23.29 Draw enol tautomer(s) for each compound....Ch. 23 - 22.30 The cis ketone A is isomerized to a trans...Ch. 23 - 23.31 Draw enol tautomer(s) for each compound. ...Ch. 23 - Prob. 23.32PCh. 23 - Prob. 23.33PCh. 23 - Prob. 23.34PCh. 23 - 23.35 Rank the labeled protons in each compound in...Ch. 23 - Prob. 23.36PCh. 23 - Prob. 23.37PCh. 23 - 23.38 Acyclovir is an effective antiviral agent...Ch. 23 - 23.39 Explain why forms two different alkylation...Ch. 23 - Prob. 23.40PCh. 23 - 23.41 Acid-catalyzed bromination of pentanone ...Ch. 23 - 23.42 Draw a stepwise mechanism for the following...Ch. 23 - Prob. 23.43PCh. 23 - Prob. 23.44PCh. 23 - 23.45 Devise a synthesis of valproic acid , a...Ch. 23 - 23.46 Synthesize each compound from diethyl...Ch. 23 - Prob. 23.47PCh. 23 - Prob. 23.48PCh. 23 - Prob. 23.49PCh. 23 - 23.50 Draw the organic products formed in each...Ch. 23 - 23.51 Draw the products formed (including...Ch. 23 - Prob. 23.52PCh. 23 - Prob. 23.53PCh. 23 - 23.54 Clopidogrel is the generic name for Plavix,...Ch. 23 - 23.55 What reaction conditions—base, solvent, and...Ch. 23 - Prob. 23.56PCh. 23 - 23.57 Draw a stepwise mechanism showing how two...Ch. 23 - 23.58 Draw a stepwise mechanism for the following...Ch. 23 - Prob. 23.59PCh. 23 - 23.60 Draw stepwise mechanisms illustrating how...Ch. 23 - Prob. 23.61PCh. 23 - Prob. 23.62PCh. 23 - 23.63 Synthesize each compound from cyclohexanone...Ch. 23 - Prob. 23.64PCh. 23 - Prob. 23.65PCh. 23 - 23.66 Synthesize (Z)-hept-5-en-2-one from ethyl...Ch. 23 - Prob. 23.67PCh. 23 - 23.68 Capsaicin, the spicy component of hot...Ch. 23 - 23.69 Treatment of W with , followed by , affords...Ch. 23 - Prob. 23.70PCh. 23 - Prob. 23.71PCh. 23 - Prob. 23.72PCh. 23 - Prob. 23.73PCh. 23 - Prob. 23.74P
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