Organic Chemistry
4th Edition
ISBN: 9780073402772
Author: Janice G. Smith
Publisher: MCG
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Chapter 28, Problem 28.53P
Interpretation Introduction
Interpretation: The two aldohexoses yield D-arabinose upon Wohl degradation are to be predicted.
Concept introduction: Wohl degradation is a method which is used for the contraction of the carbon chains in aldose. In this method, the aldose chain is shortens by the cleavage of
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Draw the Fischer projection of D-fructose.
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Consider this step in a radical reaction:
Y
What type of step is this? Check all that apply.
Draw the products of the step on the right-hand side of the drawing area
below. If more than one set of products is possible, draw any set.
Also, draw the mechanism arrows on the left-hand side of the drawing
area to show how this happens.
ionization
propagation
initialization
passivation
none of the above
22.16 The following groups are ortho-para directors.
(a)
-C=CH₂
H
(d)
-Br
(b)
-NH2
(c)
-OCHS
Draw a contributing structure for the resonance-stabilized cation formed during elec-
trophilic aromatic substitution that shows the role of each group in stabilizing the
intermediate by further delocalizing its positive charge.
22.17 Predict the major product or products from treatment of each compound with
Cl₁/FeCl₂-
OH
(b)
NO2
CHO
22.18 How do you account for the fact that phenyl acetate is less reactive toward electro-
philic aromatic substitution than anisole?
Phenyl acetate
Anisole
CH
(d)
Chapter 28 Solutions
Organic Chemistry
Ch. 28 - Prob. 28.1PCh. 28 - Prob. 28.2PCh. 28 - Label each stereogenic center as R or S. a. b. c....Ch. 28 - Convert the ball-and-stick model to a Fischer...Ch. 28 - Prob. 28.5PCh. 28 - Prob. 28.6PCh. 28 - Prob. 28.7PCh. 28 - Prob. 28.8PCh. 28 - Prob. 28.9PCh. 28 - Prob. 28.10P
Ch. 28 - Prob. 28.11PCh. 28 - Prob. 28.12PCh. 28 - Prob. 28.13PCh. 28 - Prob. 28.14PCh. 28 - Prob. 28.15PCh. 28 - Prob. 28.16PCh. 28 - Draw a stepwise mechanism for the following...Ch. 28 - Prob. 28.18PCh. 28 - Prob. 28.19PCh. 28 - Prob. 28.20PCh. 28 - Prob. 28.21PCh. 28 - Draw the products formed when D-arabinose is...Ch. 28 - Prob. 28.23PCh. 28 - Prob. 28.24PCh. 28 - Prob. 28.25PCh. 28 - Prob. 28.26PCh. 28 - Prob. 28.27PCh. 28 - Prob. 28.28PCh. 28 - Prob. 28.29PCh. 28 - Prob. 28.30PCh. 28 - Prob. 28.31PCh. 28 - Prob. 28.32PCh. 28 - Prob. 28.33PCh. 28 - Prob. 28.34PCh. 28 - Problem-28.35
Draw the structures of the...Ch. 28 - Prob. 28.36PCh. 28 - 28.37 Convert each ball-and-stick model to a...Ch. 28 - Prob. 28.38PCh. 28 - Prob. 28.39PCh. 28 - Convert each compound to a Fischer projection and...Ch. 28 - Prob. 28.41PCh. 28 - Prob. 28.42PCh. 28 - Prob. 28.43PCh. 28 - Prob. 28.44PCh. 28 - Prob. 28.45PCh. 28 - Draw both pyranose anomers of each aldohexose...Ch. 28 - Prob. 28.47PCh. 28 - Prob. 28.48PCh. 28 - Prob. 28.49PCh. 28 - Prob. 28.50PCh. 28 - Prob. 28.51PCh. 28 - Prob. 28.52PCh. 28 - Prob. 28.53PCh. 28 - What products are formed when each compound is...Ch. 28 - Prob. 28.55PCh. 28 - Prob. 28.56PCh. 28 - Prob. 28.57PCh. 28 - Prob. 28.58PCh. 28 - 28.58 Draw a stepwise mechanism for the following...Ch. 28 - Prob. 28.60PCh. 28 - Prob. 28.61PCh. 28 - Prob. 28.62PCh. 28 - Prob. 28.63PCh. 28 - Prob. 28.64PCh. 28 - Prob. 28.65PCh. 28 - Prob. 28.66PCh. 28 - Prob. 28.67PCh. 28 - Prob. 28.68PCh. 28 - Prob. 28.69PCh. 28 - Prob. 28.70PCh. 28 - Prob. 28.71PCh. 28 - Prob. 28.72PCh. 28 - Prob. 28.73PCh. 28 - Prob. 28.74PCh. 28 - Prob. 28.75PCh. 28 - Prob. 28.76PCh. 28 - Prob. 28.77PCh. 28 - Draw a stepwise mechanism for the following...Ch. 28 - Prob. 28.79P
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