QUESTION 2 Based on the following synthetic route, cycloalkene J could be used to generate a cyclised ester, N. H3C CH3 ? ELOH H3C ČH3 H3C ČH3 HO. H*,A Cycloalkene K L NABH, Hydroxy derivative M Intramolecular esterification Ester N a) Cycloalkene J has to be initially cleaved to give compound K. State the appropriate reagents and reaction conditions for the cleavage of J. b) Prior to undergoing intramolecular esterification compound K has to be converted to N-DU Duuu thu

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QUESTION 2
Based on the following synthetic route, cycloalkene J could be used to generate a cyclised
ester, N.
H3C
CH3
?
ELOH
H3C
ČH3
H3C
ČH3
HO.
H*,A
Cycloalkene
K
L
NABH,
Hydroxy derivative
M
Intramolecular
esterification
Ester N
a) Cycloalkene J has to be initially cleaved to give compound K. State the appropriate
reagents and reaction conditions for the cleavage of J.
b) Prior to undergoing intramolecular esterification compound K has to be converted to
compound L and subsequently reduced with NABH4 to its hydroxy derivative. Draw the
structure of M.
c) Explain why the carboxylic acid group in K have to be converted to compound L before
reacting with its hydroxy substituent to form the ester.
d) Draw the structure of ester N and write the mechanism for its formation from M.
Transcribed Image Text:QUESTION 2 Based on the following synthetic route, cycloalkene J could be used to generate a cyclised ester, N. H3C CH3 ? ELOH H3C ČH3 H3C ČH3 HO. H*,A Cycloalkene K L NABH, Hydroxy derivative M Intramolecular esterification Ester N a) Cycloalkene J has to be initially cleaved to give compound K. State the appropriate reagents and reaction conditions for the cleavage of J. b) Prior to undergoing intramolecular esterification compound K has to be converted to compound L and subsequently reduced with NABH4 to its hydroxy derivative. Draw the structure of M. c) Explain why the carboxylic acid group in K have to be converted to compound L before reacting with its hydroxy substituent to form the ester. d) Draw the structure of ester N and write the mechanism for its formation from M.
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