3.3.9.2 - acylation Flashcards

1
Q

acyl chlorides have func group ..

A

-COCl (which contains acyl group COCl)
O
//
C
\
Cl

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2
Q

acyl chloride general formula

A

RCOCl

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3
Q

naming acyl chlorides

A

find longest carbon chain and then add oyl chloride
acyl group will alwats be on the end and carbon on acyl grouo is always carbon 1

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4
Q

acyl chloride + water
— > ..
and give observations

A

carboxylic acid and hcl
vigorous reaction
white misty fumes of hydrogen chloride gas produced

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5
Q

ethanoyl chloride + water –> ….
give observations

A

ethanoic acid + HCl
vig reaction
white mistry fumes of hydrogen chloride gas

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6
Q

acyl chloride + ammonia produces….

A

acyl chloride + ammonia –> amide +hcl

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7
Q

ethanoyl chloride + ammonia produces ..
+ give observations

A

ethanamide + hcl
vigorous reaction
white misty fumes of hydrogen chloride gas produced

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8
Q

amide func group and how it differs from amine

A

O
//
C
\
NH2
amine doesnt have carbonyl group

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9
Q

acyl chloride + alcohol –> ?

A

acyl chloride + alcohol –> esters + hydrogen chloride

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10
Q

ethanoyl chloride + methanol produces …
+ observations

A

methyl ethanoate + hcl
vigorous reaction
white misty fumes of hydrogen chloride gas produced

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11
Q

acyl chloride + primary amine forms?

A

n - substitued amides
alkyl group is in whats substituted

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12
Q

ethanoyl chloride + methyl amine –>
+ observations

A

ethanoyl chloride + methyl amine –> N - methyl ethanamide + hcl
vigorous reaction
white misty fumes of hydrogen chloride gas produced

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13
Q

what is an acid anhydride

A

molecule made from 2 carboxylic acids that are the same

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14
Q

acid anhydrides are names by …

A

naming known carboxylic acid its made from and removing -acid and adding -anhydride

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15
Q

name this acid anhydride
O
//
H3C - C
\
O
/
H3C - C
\
O

A

ethanoic anhydride

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16
Q

acid anhydrides and acyl chlorides both react with ammonia, water, alcohol and primary amines
which reacts more vigorously

A

acyl chlorides

17
Q

acid anhydride + water –> …

A

acid anhydride + water –> carboxylic acid

18
Q

ethanoic anhydride + water forms…

A

ethanoic acid (2 mol of it)

19
Q

acid anhydride + ammonia –> …

A

amides + carboxylic acid

20
Q

ethanoic anhydride + ammonia forms…

A

ethanamide + ethanoic acid

21
Q

acid anhydride + alcohol –> …

A

ester + carboxylic acid

22
Q

ethanoic anhydride + methanol forms…

A

methyl ethanoate + ethanoic acid

23
Q

acid anhydride + primary amines –> …

A

n - substitued amides
+ carboxylic acid

24
Q

ethanoic anhydride + methyl amine forms…

A

n - methyl ethanamide + ethanooic acid

25
Q

Ethanooic anhydride is used instead of ethanol chloride in industry bc …

A

Safer bc it’s less corrosive and doesn’t react vigorously w water
Cheaper
Doesn’t produce harmful HCL gas

26
Q

Ethanooic anhydride is used instead of ethanol chloride in industry bc …

A

Safer bc it’s less corrosive and doesn’t react vigorously w water
Cheaper
Doesn’t produce harmful HCL gas