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(a)
Interpretation:
The mechanism for the formation of vinylic bromide with inversion of configuration by the reaction of vinylic boronic acid with
Concept introduction:
Electrophilic addition reaction is the substitution of an electrophile at the electron-rich center. The
Addition of halogens into
(b)
Interpretation:
The mechanism for the formation of vinylic iodide with retention of configuration by the reaction of vinylic boronic acid with
Concept introduction:
Electrophilic addition reaction is the substitution of an electrophile at the electron-rich center. The
Addition of halogens into alkenes is stereoselective, that is, it depends upon the type of the alkene present. If the alkene is a cis-alkene, electron-rich of halide ions takes place and a racemic mixture is formed. If the alkene is a trans-alkene, syn-addition of halide ions occur and a meso compound is formed.
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Chapter 18 Solutions
Organic Chemistry Study Guide and Solutions
- Steps and explanation.arrow_forwardProvide steps and explanation please.arrow_forwardDraw a structural formula for the major product of the acid-base reaction shown. H 0 N + HCI (1 mole) CH3 N' (1 mole) CH3 You do not have to consider stereochemistry. ● • Do not include counter-ions, e.g., Na+, I, in your answer. . In those cases in which there are two reactants, draw only the product from 989 CH3 344 ? [Farrow_forward
- Assign these protonarrow_forwardCould you please solve the first problem in this way and present it similarly but color-coded or step by step so I can understand it better? Thank you!arrow_forwardCould you please solve the first problem in this way and present it similarly but color-coded or step by step so I can understand it better? Thank you!arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning
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