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Chapter 17: Problem 359

Write structural formulas for: (a) methyl ether (b) isopropyl methyl ether (c) 3-methoxyhexane (d) 1,2 -epoxypentane

Short Answer

Expert verified
(a) Methyl ether: CH3-O-CH3 (b) Isopropyl methyl ether: (CH3)2CH-O-CH3 (c) 3-methoxyhexane: CH3(CH2)2-O-CH(CH2)2CH3 (d) 1,2-epoxypentane: CH2-O-CH(CH2)3CH3

Step by step solution

01

(a) Methyl ether)

Methyl ether, also known as dimethyl ether, has the molecular formula CH3-O-CH3. It consists of two methyl groups (CH3) connected by an oxygen atom. To draw the structural formula for methyl ether, follow these steps: 1. Start with the oxygen atom in the center. 2. Attach one methyl group (CH3) to one side of the oxygen atom. 3. Attach another methyl group (CH3) to the other side of the oxygen atom. 4. The structural formula of methyl ether is: CH3-O-CH3
02

(b) Isopropyl methyl ether)

Isopropyl methyl ether has the molecular formula (CH3)2CH-O-CH3. It consists of an isopropyl group ((CH3)2CH-) and a methyl group (CH3) connected by an oxygen atom. To draw the structural formula for isopropyl methyl ether, follow these steps: 1. Start with the oxygen atom in the center. 2. Attach the isopropyl group ((CH3)2CH-) to one side of the oxygen atom. 3. Attach the methyl group (CH3) to the other side of the oxygen atom. 4. The structural formula of isopropyl methyl ether is: (CH3)2CH-O-CH3
03

(c) 3-methoxyhexane)

3-methoxyhexane has the molecular formula CH3(CH2)3OCH3. It consists of a hexane chain with a methoxy group (OCH3) on the third carbon atom. To draw the structural formula for 3-methoxyhexane, follow these steps: 1. Draw a linear hexane chain with six carbon atoms (CH3(CH2)4CH3). 2. On the third carbon atom in the chain, replace one hydrogen atom with a methoxy group (OCH3). 3. The structural formula of 3-methoxyhexane is: CH3(CH2)2-O-CH(CH2)2CH3
04

(d) 1,2-epoxypentane)

1,2-epoxypentane has the molecular formula CH3(CH2)3CH2O with an epoxy (epoxide) group between the first and second carbon atoms. The epoxy group is a three-membered ring containing an oxygen atom and two carbon atoms. To draw the structural formula for 1,2-epoxypentane, follow these steps: 1. Draw a linear pentane chain with five carbon atoms (CH3(CH2)3CH3). 2. Replace two hydrogen atoms, one on each of the first two carbon atoms, with an epoxy (epoxide) group to form a three-membered ring with the oxygen atom and the first two carbon atoms. 3. The structural formula of 1,2-epoxypentane is: CH2-O-CH(CH2)3CH3

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Most popular questions from this chapter

Specify a simple chemical test to distinguish the following pairs of compounds . Give the reagent to be used and the observation that you would make. (a) Diisopropyl ether and diallyl ether (b) Diethyl ether and methyl iodide (c) Dibutyl ether and \(\mathrm{n}\) -butyl alcohol

Propylene oxide can be converted into propylene glycol by the action of either dilute acid or dilute base. When optically active propylene oxide is used, the glycol obtained from acidic hydrolysis has a rotation opposite to that obtained from alkaline hydrolysis. What is the most likely interpretation of these facts?

Draw structures showing stereochemistry where necessary for the products you would expect from the following reactions.

In ether formation by dehydration, as in most other cases of nucleophilic substitution, there is a competing elimination reaction. What is this reaction and what products does it yield? For what alcohols would elimination be most important?

Starting with any alcohols, outline all steps in the synthesis of \(n\) -hexyl isopropyl ether, using the Williamson method.
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