A compound associated with the smell or flavour of raspberries has the structure
O
||
H3C-C-CH2-C-CH-CH3
| | H
H O
| ||
H C
|
H
To synthesise this compound in the laboratory you would react:
A - VCE - SSCE Chemistry - Question 13 - 2002 - Paper 1
Question 13
A compound associated with the smell or flavour of raspberries has the structure
O
||
H3C-C-CH2-C-CH-CH3
| | H
H O
| ... show full transcript
Worked Solution & Example Answer:A compound associated with the smell or flavour of raspberries has the structure
O
||
H3C-C-CH2-C-CH-CH3
| | H
H O
| ||
H C
|
H
To synthesise this compound in the laboratory you would react:
A - VCE - SSCE Chemistry - Question 13 - 2002 - Paper 1
Step 1
A. methanol and propanoic acid.
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Answer
This combination will not yield the desired compound, as it lacks the necessary carbon chain length.
Step 2
B. methanol and butanoic acid.
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Answer
This reaction would produce a compound, but not the one associated with raspberries. The structure does not match.
Step 3
C. 1-propanol and methanoic acid.
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Answer
This is the correct reaction. The propanol provides the necessary carbon chain, and when reacted with methanoic acid, it forms the desired ester compound associated with raspberries.
Step 4
D. 1-butanol and methanoic acid.
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Answer
This also does not yield the correct ester structure. The carbon chain does not match.
