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Questions and Answers
What is the reaction of Alkene + HBr ROOR?
What is the reaction of Alkene + HBr ROOR?
What is the result of Alkene + Hx?
What is the result of Alkene + Hx?
What happens with Alkene + 1) O3 2) DMS?
What happens with Alkene + 1) O3 2) DMS?
What do you get from 1 Alkene + 1) OsO4 2) NaHSO3 H2O?
What do you get from 1 Alkene + 1) OsO4 2) NaHSO3 H2O?
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What is the outcome of 2 Alkene + KMnO4 NaOH, cold?
What is the outcome of 2 Alkene + KMnO4 NaOH, cold?
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What reaction occurs with Alkene + 1) RCO3H 2) H3O+?
What reaction occurs with Alkene + 1) RCO3H 2) H3O+?
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What does Alkene + Br2, H2O yield?
What does Alkene + Br2, H2O yield?
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What is the result of Alkene + Br2?
What is the result of Alkene + Br2?
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What happens when Alkene + H2 in the presence of Pt?
What happens when Alkene + H2 in the presence of Pt?
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What is the result of Alkene + 1) BH3 THF 2) H2O2, NaOH?
What is the result of Alkene + 1) BH3 THF 2) H2O2, NaOH?
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What is the outcome of Alkene + 1) Hg(OAc)2 H2O 2) NaBH4?
What is the outcome of Alkene + 1) Hg(OAc)2 H2O 2) NaBH4?
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What is the product of Alkene + H3O+?
What is the product of Alkene + H3O+?
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Study Notes
Hydrohalogenation
- Hydrohalogenation with HBr in the presence of ROOR leads to anti-Markovnikov addition.
- Hydrohalogenation with HX follows Markovnikov's rule for product distribution.
Ozonolysis
- Ozonolysis involves breaking alkenes with O3 followed by reduction with DMS, resulting in carbonyl compounds.
Dihydroxylation
- Syn dihydroxylation can be achieved using OsO4 followed by NaHSO3 and water, allowing for two enantiomeric forms.
- Cold conditions with KMnO4 and NaOH also produce syn dihydroxylation with similar enantiomeric results.
Anti Dihydroxylation
- Anti dihydroxylation is performed using a peracid (RCO3H) followed by acidic work-up (H3O+), producing different stereochemistry.
Halohydrin Formation
- Reacting alkenes with Br2 and water results in halohydrin formation, yielding compounds containing both halogen and hydroxyl groups.
Bromination
- Bromination of alkenes exclusively involves the addition of Br2, which is an electrophilic addition.
Hydrogenation
- Hydrogenation of alkenes, using H2 in the presence of a platinum catalyst (Pt), converts double bonds into single bonds.
Hydroboration-Oxidation
- Hydroboration-oxidation employs BH3 in THF followed by hydrogen peroxide (H2O2) and NaOH, leading to anti-Markovnikov alcohols.
Acid-Catalyzed Hydration
- Acid-catalyzed hydration via H3O+ adds water across the double bond, producing alcohols.
- Oxymercuration-demercuration is conducted using Hg(OAc)2 with water followed by NaBH4, optimizing for Markovnikov addition in alcohol formation.
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Description
Test your knowledge of addition reactions involving alkenes with these helpful flashcards. Learn about different processes like hydrohalogenation and ozonolysis. Perfect for organic chemistry students looking to reinforce their understanding.
