(a)
Interpretation:
The given reactions are final steps in one industrial synthesis of vitamin A acetate.
The mechanism has to be proposed for the acid-catalyzed cyclization in step-1.
Concept Introduction:
The ring cyclization occurs when an acyclic molecule reacts with acid. by the abstraction of proton from the acid molecule, internal bond shifting occurs to form the cyclization product.
(b)
Interpretation:
The given reactions are final steps in one industrial synthesis of vitamin A acetate.
The reagents has to be given for the reaction involved in step-2.
(c)
Interpretation:
The given reactions are final steps in one industrial synthesis of vitamin A acetate.
The mechanism has to be proposed for the formation of phosphonium salt in step-4.
(d)
Interpretation:
The given reactions are final steps in one industrial synthesis of vitamin A acetate.
The reagents that are involved in the reaction of step-3 has to be proposed.
(e)
Interpretation:
The given reactions are final steps in one industrial synthesis of vitamin A acetate.
Wittig reaction of step-5 has to be shown.
Concept Introduction:
Wittig reaction:
The reaction of carbonyl compound with the ylide of phosphonium salt to give an
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Chapter 16 Solutions
OWLv2 with MindTap Reader, 1 term (6 months) Printed Access Card for Brown/Iverson/Anslyn/Foote's Organic Chemistry, 8th Edition
- McLafferty Rearrangement: Label alpha (), beta (), and gamma () on the molecule. Draw mechanismarrows to describe the process of the rearrangement. What functional group is lost during the rearrangement? What new functional group is made from the ketone/aldehyde you started with? What stabilizing chemical theory causes (allows) rearrangement to happen?arrow_forwardDon't used hand raiting and don't used Ai solutionarrow_forwardDon't used hand raitingarrow_forward
- If a high molecular weight linear polyethylene is chlorinated by inducing the substitution of chlorine atoms by hydrogen, if 5% of all hydrogen atoms are replaced, what approximate percentage of chlorine by weight would the product have?arrow_forwardO Macmillan Learning Chemistry: Fundamentals and Principles Davidson presented by Macmillan Learning Poly(ethylene terephthalate), known as PET or industrially as Dacron, is a polyester synthesized through a condensation reaction between two bifunctional monomers. The monomers, ethylene glycol and terepthalic acid, are given. Add bonds and remove atoms as necessary to show the structure of a two repeat unit portion of a longer polymer chain of PET. You may need to zoom out to see the complete structure of all four monomer units. Select Draw / || | C H 0 3 © Templates More ° ° ° || C CC - OH HO OH HOC - C Erase CC OH HO C C 〃 C H₂ Q2Qarrow_forwardc) + H₂Oarrow_forward
- 으 b) + BF. 3 H2Oarrow_forwardQ4: Draw the product of each Lewis acid-bas reaction. Label the electrophile and nucleophile. b) S + AICI 3 + BF 3arrow_forwardQ1 - What type(s) of bonding would be expected for each of the following materials: solid xenon, calcium fluoride (CaF2), bronze, cadmium telluride (CdTe), rubber, and tungsten? Material solid xenon CaF2 bronze CdTe rubber tungsten Type(s) of bonding Q2- If the atomic radius of lead is 0.175 nm, calculate the volume of its unit cell in cubic meters.arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning