Organic Chemistry
Organic Chemistry
5th Edition
ISBN: 9780078021558
Author: Janice Gorzynski Smith Dr.
Publisher: McGraw-Hill Education
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Diol
In chemistry there are so many chemical compounds that have a hydroxyl group but a chemical compound having two hydroxyl groups (-OH) is termed as a diol. It also implies the presence of two alcohols whereas polyols contain two or more than two hydroxyl …
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Chapter 20, Problem 20.55P
Interpretation Introduction

(a)

Interpretation: The Grignard reagent and aldehyde (or ketone) needed to prepare the given alcohol are to be predicted and the all possible routes are to be drawn.

Concept introduction: One should follow the retrosynthetic pathway to find out the Grignard reagent and aldehyde (or ketone) needed to prepare an alcohol. This involves two steps. The first step is finding of carbon bonded to the OH group in the product. The second step is cleaving the molecule into two parts; Grignard reagent, and carbonyl.

Interpretation Introduction

(b)

Interpretation: The Grignard reagent and aldehyde (or ketone) needed to prepare the given alcohol are to be predicted and the all possible routes are to be drawn.

Concept introduction: One should follow the retrosynthetic pathway to find out the Grignard reagent and aldehyde (or ketone) needed to prepare an alcohol. This involves two steps. The first step is finding of carbon bonded to the OH group in the product. The second step is cleaving the molecule into two parts; Grignard reagent, and carbonyl.

Interpretation Introduction

(c)

Interpretation: The Grignard reagent and aldehyde (or ketone) needed to prepare the given alcohol are to be predicted and the all possible routes are to be drawn.

Concept introduction: One should follow the retrosynthetic pathway to find out the Grignard reagent and aldehyde (or ketone) needed to prepare an alcohol. This involves two steps. The first step is finding of carbon bonded to the OH group in the product. The second step is cleaving the molecule into two parts; Grignard reagent, and carbonyl.

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Chapter 20 Solutions

Organic Chemistry

Ch. 20 - Prob. 20.1PCh. 20 - Which carbonyl groups in the anticancer drug taxol...Ch. 20 - Prob. 20.3PCh. 20 - Problem 20.4 What alcohol is formed when each...Ch. 20 - Problem 20.5 What aldehyde or ketone is needed to...Ch. 20 - Prob. 20.6PCh. 20 - Problem 20.7 Draw the products formed when is...Ch. 20 - Problem 20.8 Draw the products formed (including...Ch. 20 - Prob. 20.9PCh. 20 - Problem 20.10 Draw a stepwise mechanism for the...
Ch. 20 - Prob. 20.11PCh. 20 - Problem 20.12 Draw the products formed from ...Ch. 20 - Prob. 20.13PCh. 20 - Prob. 20.14PCh. 20 - Prob. 20.15PCh. 20 - Problem-20.16 Review the oxidation reactions using...Ch. 20 - Problem-20.17 Write the step(s) needed to convert ...Ch. 20 - Problem-20.18 Oct-1-yne reacts rapidly with ,...Ch. 20 - Prob. 20.19PCh. 20 - Prob. 20.20PCh. 20 - Problem 20.21 Draw the product of each reaction. ...Ch. 20 - Problem 20.22 Draw the products (including...Ch. 20 - Problem 20.23 What Grignard reagent and carbonyl...Ch. 20 - Problem 20.24 Linalool (the Chapter 9 opening...Ch. 20 - Problem 20.25 What Grignard reagent and carbonyl...Ch. 20 - Prob. 20.26PCh. 20 - Draw the products formed when each compound is...Ch. 20 - Problem 20.28 What ester and Grignard reagent are...Ch. 20 - Prob. 20.29PCh. 20 - Problem 20.30 What reagent is needed to convert ...Ch. 20 - Prob. 20.31PCh. 20 - What carboxylic acid formed from each alkyl halide...Ch. 20 - Prob. 20.33PCh. 20 - Problem 20.34 Draw the product when each compound...Ch. 20 - Problem 20.35 Synthesize each compound from...Ch. 20 - Prob. 20.36PCh. 20 - 20.37 Devise a synthesis of each alcohol from...Ch. 20 - 20.38 Draw the products formed when pentanal is...Ch. 20 - 20.39 Draw the product formed when is treated...Ch. 20 - The stereochemistry of the products of reduction...Ch. 20 - Prob. 20.41PCh. 20 - 20.42 Draw the products or each reduction...Ch. 20 - Prob. 20.43PCh. 20 - 20.44 Draw all stereoisomers formed in each...Ch. 20 - Prob. 20.45PCh. 20 - 20.46 Treatment of ketone A with ethynylithium...Ch. 20 - 20.47 Explain why metal hydride reduction gives an...Ch. 20 - Prob. 20.48PCh. 20 - 20.49 Identify the lettered compounds in the...Ch. 20 - Prob. 20.50PCh. 20 - 20.51 Draw a stepwise mechanism for the following...Ch. 20 - 20.52 Draw a stepwise mechanism for the following...Ch. 20 - Prob. 20.53PCh. 20 - 20.54 Draw a stepwise mechanism for the following...Ch. 20 - Prob. 20.55PCh. 20 - Prob. 20.56PCh. 20 - 20.57 What ester and Grignard reagent are needed...Ch. 20 - 20.58 What organolithium reagent and carbonyl...Ch. 20 - 20.59 What epoxide and organometallic reagent are...Ch. 20 - Prob. 20.60PCh. 20 - 20.61 Propose two different methods to synthesize...Ch. 20 - 20.62 Synthesize each compound from cyclohexanol...Ch. 20 - 20.63 Convert propan-2-ol into each compound....Ch. 20 - 20.64 Convert benzene into each compound. You may...Ch. 20 - 20.65 Design a synthesis of each compound from...Ch. 20 - 20.66 Synthesize each compound from the given...Ch. 20 - Prob. 20.67PCh. 20 - Prob. 20.68PCh. 20 - 20.69 An unknown compound A (molecular formula )...Ch. 20 - 20.70 Treatment of compound C (molecular formula )...Ch. 20 - 20.71 Treatment of compound E (molecular formula )...Ch. 20 - 20.72 Reaction of butanenitrile () with methyl...Ch. 20 - 20.73 Treatment of isobutene with forms a...Ch. 20 - 20.74 Draw a stepwise mechanism for the following...Ch. 20 - Prob. 20.75PCh. 20 - 20.76 Lithium tri-sec-butylborohydride, also known...Ch. 20 - Prob. 20.77PCh. 20 - Prob. 20.78PCh. 20 - Prob. 20.79PCh. 20 - 20.80 Draw a stepwise mechanism for the following...Ch. 20 - Prob. 20.81P
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