(a)
Interpretation:
- The products of the given reaction has to be predicted.
Concept Introduction:
Effect of delocalized electrons on the product of the reaction:
The presence of delocalizes electrons while electrophilic addition or substitution the cation intermediate formed is shifted to stable carbocation form at higher rate, and that leads to the product.
Rule: The stabilities of carbocation are,
Reactions of conjugated dienes:
An electrophilic addition reaction to a conjugated diene forms both
(b)
Interpretation:
- The possible stereoisomers of products generated in the given reaction has to be predicted.
Concept Introduction:
Effect of delocalized electrons on the product of the reaction:
The presence of delocalizes electrons while electrophilic addition or substitution the cation intermediate formed is shifted to stable carbocation form at higher rate, and that leads to the product.
Rule: The stabilities of carbocation are,
Reactions of conjugated dienes:
An electrophilic addition reaction to a conjugated diene forms both
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Organic Chemistry (8th Edition)
- Draw the alkene that would react with the reagent given to account for the product formed. ? + H₂O H₂SO4 CH3 CH3 CHCCH3 OH CH3 • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • In cases where there is more than one answer, just draw one. Sn [F ChemDoodlearrow_forwardDraw the organic product of the following reaction. CH3 m-CICgH,CO;H • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • If the reaction produces a racemic mixture, just draw one stereoisomer. • If more than one product is possible, only draw the major product. opy astearrow_forward14. Choose the reagents needed to create an alkene with a double bond between C3 and C4. a. Conc. H2SO4 OH b. 1) BH3 THF; 2) H2O2, NaOH c. HBr, ROOR d. HBrarrow_forward
- Reagents a. C6H5CHO b. NaOH, ethanol h. BrCH2CH=CH2 i. Na* OEt, ethanol j. Br2, H* k. K* t-BuO c. Pyrrolidine, cat. H* d. H2C=CHCN e. H3O* f. I. CH2(CO2ET)2 -CH2CH2CN LDA m. heat g. ELOC(=0)CO2ET Select reagents from the table to synthesize this compound from cyclopentanone. Enter the letters of the chosen reagents, in the order that you wish to use them, without spaces or punctuation (i.e. geda).arrow_forwardClassify each carbocation as primary, secondary, or tertiary. a. b. 人 C. d.arrow_forwardConsider the two alkene additions reactions a. What are the major products for each reaction? b. What is the mechanism for each reaction? c. Which reaction would be faster and why? Use words like “transition-state, intermediate and/or reactant/product stability” in your justification. Draw the reaction coordinate diagram for both to assist in your explanation.arrow_forward
- 1. Draw all stereoisomers formed in each reaction. a. Br2 b. Cl₂ H₂O C. NBS DMSO, H₂Oarrow_forwardDraw the alkene that would react with the reagent given to account for the product formed. ? + HCI My 3 You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • In cases where there is more than one answer, just draw one. CH3 CH₂ CHOCH3 TT CI CH3 L ▼ {n [F ? ChemDoodleⓇarrow_forwardDraw the alkene that would react with the reagent given to account for the product formed. CH3 HCI CH3 CHCCH, ? + Či CH3 You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • In cases where there is more than one answer, just draw one.arrow_forward
- 4. Syn and anti addition can occur with alkenes. 1. Describe syn and anti addition. b. Give an example of syn addition to an alkene and explain why it is syn. c. Give an example of anti addition to an alkene and explain why it is anti. 5. The following reactions shows the dehydration of 2-methylcyclohexanol. Why is 1-methylcyclohexene the major product? X OH H3PO4 84% 16%arrow_forwardDraw the structures of the products obtained from the reaction of each enantiomer of cis-1-chloro-2-isopropylcyclopentane with sodium methoxide in methanol. b. Are all the products optically active? c. How would the products differ if the starting material were the trans isomer? Are these products optically active? d. Will the cis enantiomers or the trans enantiomers form substitution products more rapidly? e. Will the cis enantiomers or the trans enantiomers form elimination products more rapidly?arrow_forwardJj.125.arrow_forward
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