CHE 321- Oxidizing and reducing agents in alcohols

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17 Terms

1
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What is oxidation? How does it work in alcohols?

a decrease in the hydrogen content or an increase in content of oxygen or other electronegative elements .

2
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What is Jones reagent and what does it do?

Jones reagent is a strong oxidizing agent which generally turns alcohols into carbonyls.

3
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What is jones reagent effect in secondary alcohols?

secondary alcohols are turned into ketones

<p>secondary alcohols are turned into ketones</p>
4
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what does LiAlH4/ H+ do to a ketone

ketone reduces to a secondary alcohol

<p>ketone reduces to a secondary alcohol</p>
5
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what does LiAlH4/ H+ do to a carboxylic acid?

LiAlH4/ H+ reduces a carboxylic acid to primary alcohol

<p>LiAlH4/ H+ reduces a carboxylic acid to primary alcohol</p>
6
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what does LiAlH4/ H+ do to an ester

esters are turned into primary alcohols

7
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What are the oxidizing agents ?

Jones reagent [Cr (VI) CrO3, H2CrO4,Na2Cr2O7, K2Cr2O7) in aqueous acid/acetone... PCC

8
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what is PCC and what is its effect in a primary alcohol?

PCC can turn a primary alcohol into an aldehyde

<p>PCC can turn a primary alcohol into an aldehyde</p>
9
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what is PCC effect on a secondary alcohol?

PCC can turn a secondary alcohol into a carbonyl/ketone

<p>PCC can turn a secondary alcohol into a carbonyl/ketone</p>
10
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What is jones reagent effect in primary alcohols?

primary alcohols are oxidized to carboxylic acids via the aldehyde and aldehyde hydrate

<p>primary alcohols are oxidized to carboxylic acids via the aldehyde and aldehyde hydrate</p>
11
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What is jones reagent effect in aldehydes

Jones reagent turns aldehydes into carboxylic acids

<p>Jones reagent turns aldehydes into carboxylic acids</p>
12
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What is reduction? what does reduction do in alcohols?

Reduction is an increase in hydrogen content or a decrease in the content of oxygen or other electronegative elements. Reducing agents generally reduce ketones, aldehydes, and carboxylic acids to alcohols

13
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What is NaBH4?

NaBH4 is a reducing agent .

14
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What does NaBH4 do to a ketone?

NaBH4 reduces a ketone to a secondary alcohol

<p>NaBH4 reduces a ketone to a secondary alcohol</p>
15
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What does NaBH4 do to aldehydes ?

NaBH4 reduces aldehydes to primary alcohols

<p>NaBH4 reduces aldehydes to primary alcohols</p>
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What is LiAlH4/ H+

reducing agent that is much more reactive than NaBH4.
-reduces ketones and aldehydes
-reduces esters and carboxylic acids

17
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what does LiAlH4/ H+ do to an aldehyde

aldehydes reduce to an primary alcohol in the presence of LiAlH4/ H+.

<p>aldehydes reduce to an primary alcohol in the presence of LiAlH4/ H+.</p>