Concept explainers
(a)
Interpretation:
The structure for each of the given thioesters.
Concept Introduction:
Thioesters are sulfur analogs of esters. The S-alkyl or S-aryl thioester has a carbonyl group and a sulfur-linked alkyl or aryl group. The first part of the name indicates that the alkyl or aryl group has bonded to the sulfur atom. The last part of the name indicates the
Answer to Problem 25.1P
Explanation of Solution
In the given name cyclohexyl thiobenzoate, the cyclohexyl is the alkyl group which is bonded to the sulfur atom. Thiobenzoate consists of a phenyl ring bonded to the sulfur atom through a carbonyl group. The structure for cyclohexyl thiobenzoate is drawn as below:
The structure for cyclohexyl thiobenzoate is:
(b)
Interpretation:
The structure for each of the given thioesters.
Concept Introduction:
Thioesters are sulfur analogs of esters. The S-alkyl or S-aryl thioester has a carbonyl group and a sulfur-linked alkyl or aryl group. The first part of the name indicates that the alkyl or aryl group has bonded to the sulfur atom. The last part of the name indicates the carboxylic acid stem. In common usage, the “S-“prefix is understood, and so, it is not mentioned.
Answer to Problem 25.1P
Explanation of Solution
The first part of the name suggests that the isopropyl group must be attached directly to the sulfur atom. The second part of the name suggests that the ester is formed from butanoic acid. In
The structure for S-isopropyl butanethioate is:
(c)
Interpretation:
The structure for each of the given thioesters.
Concept Introduction:
Thioesters are sulfur analogs of esters. The S-alkyl or S-aryl thioester has a carbonyl group and a sulfur-linked alkyl or aryl group. The first part of the name indicates that the alkyl or aryl group has bonded to the sulfur atom. The last part of the name indicates the carboxylic acid stem. In common usage, the “S-“prefix is understood, and so, it is not mentioned.
Answer to Problem 25.1P
Explanation of Solution
The first part of the name suggests that the phenyl ring must be attached directly to the sulfur atom. The second part of the name suggests that the ester is formed from the carboxylic acid which contains a cyclohexyl ring. In IUPAC nomenclature, “thio-“is inserted before the “ate” suffix in the name of the corresponding oxygen ester.
The structure for S-phenyl cyclohexanecarbothioate is shown as below:
The structure for S-phenyl cyclohexanecarbothioate is:
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Chapter 25 Solutions
EBK ORGANIC CHEMISTRY
- Imagine a four-dimensional world. In it, atoms would have one s orbital and four p orbitals in a given shell. (a) Describe the shape of the Periodic Table of the first 24 elements. (b) What elements would be the first two noble gases (use the names from our world that correspond to the atomic numbers).arrow_forwardThe electron affinity of thulium was measured by a technique called laser photodetachment electron spectroscopy. In this technique, a gaseous beam of anions of an element is bombarded with photons from a laser. The photons knock electrons off some of the anions, and the energies of the emitted electrons are detected. The incident radiation had a wavelength of 1064 nm, and the emitted electrons had an energy of 0.137 eV. Although the analysis is more complicated, we can obtain an estimate of the electron affinity from the energy difference between the photons and the emitted electrons. What is the electron affinity of thulium in electron volts and in kilojoules per mole?arrow_forwardBe sure to answer all parts. The following alkyne is treated with 03 followed by H₂O. Part 1: How many different compounds are formed in this process? 1 Part 2 out of 2 Draw the product of the reaction. draw structure ...arrow_forward
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Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning