Organic Chemistry (8th Edition)
8th Edition
ISBN: 9780134042282
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Chapter 25.8, Problem 15P
Propose mechanisms for the Claisen condensation and aldol addition that comprise the first two steps of the biosynthesis of isopentenyl pyrophosphate.
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Chapter 25 Solutions
Organic Chemistry (8th Edition)
Ch. 25.1 - Prob. 1PCh. 25.3 - Which has a higher melting point, glyceryl...Ch. 25.3 - Draw the structure of an optically inactive fat...Ch. 25.3 - Draw the structure of an optically active fat...Ch. 25.5 - Do the identities of R1 and R2 in phosphatidic...Ch. 25.5 - Membranes contain proteins, Integral membrane...Ch. 25.5 - Prob. 8PCh. 25.5 - The membrane phospholipids in deer have a higher...Ch. 25.6 - Treating PGC2 with a strong base such as sodium...Ch. 25.7 - Mark off the isoprene units in menthol, -selinene,...
Ch. 25.7 - Prob. 13PCh. 25.7 - Prob. 14PCh. 25.8 - Propose mechanisms for the Claisen condensation...Ch. 25.8 - Prob. 16PCh. 25.8 - Propose a mechanism for the conversion of...Ch. 25.8 - Propose a mechanism for the biosynthesis of...Ch. 25.8 - Propose a mechanism for the conversion of the E...Ch. 25.8 - The fluoro-substitued geranyl pyrophosphate shown...Ch. 25.8 - Prob. 22PCh. 25.8 - Prob. 23PCh. 25.9 - Draw the individual 1,2-hydride and 1,2-methyl...Ch. 25.10 - Prob. 26PCh. 25.10 - Prob. 27PCh. 25.10 - The acid component of a cholesterol ester is a...Ch. 25.10 - Prob. 29PCh. 25.10 - Prob. 30PCh. 25 - Prob. 31PCh. 25 - An optically active fat, when completely...Ch. 25 - Prob. 33PCh. 25 - a. How many different triacylglycerols are there...Ch. 25 - Cardiolipins are found in heart muscles. Draw the...Ch. 25 - Nutmeg contains a simple, fully saturated...Ch. 25 - Draw the product that is obtained from the...Ch. 25 - Prob. 39PCh. 25 - Prob. 40PCh. 25 - Propose a mechanism for the biosynthesis of...Ch. 25 - 5-Androstene-3.17-dione is isomerized to...Ch. 25 - Prob. 44PCh. 25 - Eudesmol is a sesquiterpene found in eucalyptus....Ch. 25 - Prob. 46PCh. 25 - Prob. 47PCh. 25 - Diethylstilbestrol (DES) was given to pregnant...
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- The compound 3,5,5-trimethyl-2-cyclohexenone can be synthesized using acetone and ethyl acetoacetate as sources of carbon atoms. New carbon-carbon bonds in this synthesis are formed by a combination of aldol reactions and Michael reactions. Show reagents and conditions by which this synthesis might be accomplished.arrow_forwardName another tautomerisation process other than keto-enol tautomerisation and write down the mechanism of this processarrow_forward2-Ethyl-1-hexanol was needed for the synthesis of the sunscreen octyl p-methylcinnamate. Show how this alcohol could be synthesized (a) by an aldol condensation of butanal and (b) by a malonic ester synthesis starting with diethyl malonate.arrow_forward
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- 2-Phenylindole is prepared from the reaction of acetophenone and phenylhydrazine, a method known as the Fischer indole synthesis. Propose a mechanism for this reaction. (Hint: the reactive intermediate is the enamine tautomer of the phenylhydrazone.)arrow_forward2-Phenylindole is prepared from the reaction of acetophenone and phenylhydrazine, a method known as the Fischer indole synthesis.Propose a mechanism for this reaction. (Hint: the reactive intermediate is the enamine tautomer of the phenylhydrazone.)arrow_forwardPropose a mechanism for the reaction of aniline with ethyl acetate to give acetanilide.What is the leaving group in your proposed mechanism? Would this be a suitableleaving group for an SN2 reaction?arrow_forward
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