(a)
Interpretation : The chiral TCA-cycle intermediates need to be identified. The intermediate with greatest number of chiral centers and cis-trans isomerism needs to be determined.
Concept Introduction : A chiral carbon atom is the carbon atom which is bonded with four different atoms or group of atoms. The geometrical isomers are due to the presence of C=C bond in the molecule in which the double bonded carbon atoms must be bonded with two different groups. Oxidation and decarboxylation are two most important
(b)
Interpretation : The type of chemical reaction taking place in step 1 to 3 needs to be determined.
Concept Introduction : A chiral carbon atom is the carbon atom which is bonded with four different atoms or group of atoms. The geometrical isomers are due to the presence of C=C bond in the molecule in which the double bonded carbon atoms must be bonded with two different groups. Oxidation and decarboxylation are two most important chemical reactions.
(c)
Interpretation : The product of hydration of aconitic acid needs to be determined if it follows Markovnikov’s rule.
Concept Introduction : A chiral carbon atom is the carbon atom which is bonded with four different atoms or group of atoms. The geometrical isomers are due to the presence of C=C bond in the molecule in which the double bonded carbon atoms must be bonded with two different groups. Oxidation and decarboxylation are two most important chemical reactions.
(d)
Interpretation : The type of reactions taking place in step 4 to 8 needs to be determined.
Concept Introduction : A chiral carbon atom is the carbon atom which is bonded with four different atoms or group of atoms. The geometrical isomers are due to the presence of C=C bond in the molecule in which the double bonded carbon atoms must be bonded with two different groups. Oxidation and decarboxylation are two most important chemical reactions.
(e)
Interpretation : This is to be shown that step 5 involves oxidation.
Concept Introduction : A chiral carbon atom is the carbon atom which is bonded with four different atoms or group of atoms. The geometrical isomers are due to the presence of C=C bond in the molecule in which the double bonded carbon atoms must be bonded with two different groups. Oxidation and decarboxylation are two most important chemical reactions.
(f)
Interpretation : This is given that reaction 4 is also classified as a decarboxylation. Whether this decarboxylation involves oxidation reaction or not needs to be determined.
Concept Introduction : A chiral carbon atom is the carbon atom which is bonded with four different atoms or group of atoms. The geometrical isomers are due to the presence of C=C bond in the molecule in which the double bonded carbon atoms must be bonded with two different groups. Oxidation and decarboxylation are two most important chemical reactions.
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