(a)
Interpretation:
The synthesis of propoxyphene has to be proposed from 1-phenyl-1-propanone.
Concept introduction:
Aldol condensation:
The
Michael reaction:
The nucleophile is reaction with α,β-unsaturated carbonyl compound (1,4 – addition) which yield the addition product is called Michael reaction.
The Grignard reaction:
Alkyl, vinyl, or aryl-magnesium halides (
Grignard reagent is reaction with carbonyl compound such as aldehyde or ketone, produces corresponding alcohol is the product and it is the one of the carbon – carbon bond forming reaction.
(b)
Interpretation:
The possible stereoisomer’s has to be shown if the product is chiral.
Concept introduction:
Chiral:
A molecule is non superimposable on its mirror image is called chiral molecule. Four different atoms attached to a carbon atom is called chiral molecule.
Isomer: A molecule having the same molecular formula but with different chemical structure is called isomer.
Stereoisomers: Stereoisomers are molecules that have the same molecular formula and they differ only in arrangement of atom in three-dimensional space.
Enantiomers: A compound which is non-superimposable mirror image is called enantiomers.
Diastereomers: A compound which is non-superimposable and non-mirror image is called diastereomers.
Racemic mixture: A racemic mixture is simply a mixture containing an equal amount of each enantiomer.
Achiral:
A molecule is superimposable on its mirror image is called achiral molecule.
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Organic Chemistry
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- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning