(a)
Interpretation:
The mechanism of 4-Hydroxybenzaldehyde to compound A has to be shown.
(b)
Interpretation:
The reagent and experiment condition is to be given for the conversion of A to B.
Concept introduction:
(c)
Interpretation:
The mechanism for the conversion of B to C is to be explained.
Concept introduction:
Wittig Reaction: It is an organic reaction where an aldehyde or a ketone gets converted to
(d)
Interpretation:
The reagent and experiment condition is to be given for the conversion of C to D.
Concept introduction:
(e)
Interpretation:
The reagent and experiment condition is to be given for the conversion of D to albuterol.
Concept introduction:
Diol is to protect the ketone and aldehyde (carbonyl group). In this reaction acetone is protected as acetal by using ethylene glycol.
(f)
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.
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Chapter 21 Solutions
Organic Chemistry
- Show how the following ketones might be synthesized from the indicated acids, usingany necessary reagents.(b) methyl cyclohexyl ketone from cyclohexanecarboxylic acidarrow_forwardShow how to accomplish the following alkylation. (a) Step 1 (i) Specify the reagent used in this step. (ii) Draw the structure of the intermediate formed in this step, compound A. (B) draw the structure of the reagent needed for this step. (C) specify the reagent used in step b C Show how to accomplish the following alkylation. [References] Step 1 Step 2 compound A Step 3 CO₂Et (a) Step 1 (i) Specify the reagent used in this step. (ii) Draw the structure of the intermediate formed in this step, compound A. 1arrow_forwardKindly answer this questionarrow_forward
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- please help with this question. thank you. The following sequence, beginning with a cyclic hemiacetal (compound A), was part of a recently reported enantiospecific synthesis of a powerful sex pheromone (currently used in pest management) of the mealybug Pseudococcus viburni: Draw the structures of compound B and C. Provide a plausible mechanism to explain the transformation from compound C into compound D. Identify the reagents you would need to convert compound D into compound F (in just two steps). Also identify the structure of compound E.arrow_forwardConsider the tetracyclic aromatic compound drawn below, with rings labeled as A, B, C, and D. (a) Which of the four rings is most reactive in electrophilic aromatic substitution? (b) Which of the four rings is least reactive in electrophilic aromatic substitution? (c) What are the major product(s) formed when this compound is treated with one equivalent of Br2?arrow_forwardPropose a mechanism for the reaction of benzyl acetate with methylamine. Label theattacking nucleophile and the leaving group, and draw the transition state in which theleaving group leaves.arrow_forward
Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning