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- Provide the reagents. Но + enantiomer A 1. KOt-Bu, heat 2. mCPBA 3. MeMgBr 4. H2O B. 1. conc. H,SO4, heat 2. MCPBA 3. MeBr С. 1. РBгз 2. KOt-Bu 3. mCPBA 4. MeMgBr 5. H2O D. 1. Br2, hv 2. KOt-Bu 3. mCPBA 4. MeMgBr 5. H2O E. 1. Br2, hv 2. KOt-Bu 3. MCPBA 4. MeBr 5. H2O F. 1. Br2, FeBr3 2. KOt-Bu 3. mCPBA 4. MeMgBr 5. H2O G. 1. Br2, FeBr3 2. KOt-Bu 3. mCPBA 4. MeBr 5. H20Select the major product for the following reactions Br₂ EtOH A. B. C. D. E. Me e H H + enantiomer Br.. Ber: JBr + enantiomer Asal Br +enantiomer Eto... enantiomer QEt + enantiomerPredict the majpr product if the ff reagents are used. No reaction is also a possible answer. a. 2 equiv. of RMgBr and H;O* work-up b. LIAIH4 and H,O* work-up c. NABH4 and H;O† work-up.
- 3.Help on Retro Synthesis from Diene to eudesmol by using Diels-alder. OTMS 3. H. a-eudesmol HOa- 3. b. N OCH3 C. N Show the for reasonable Curved mechanism the reaction and make sure lone pairs + Conc HBr HBr 40c CN Br6. Determine whether the following reactions are SN1 or SN2. Draw the mechanism and the products with stereochemistry. a. b. Br Br + "CN + -OCH 3 acetone DMSO d. e. f. Br 11 + CH3OH + CH3CO₂H Dº Br + -OCH₂CH3 + CH3CH₂OH DMF 1, 2 of 2
- I. Write the chemical mechanism for the following using curved arrow formalism. a. b. C. I CH3 H 1. 9-BBN; 2. KOH, H₂O₂ CH3 Ph CH2CH3 d. HIIIII H3C OH CI cat. H2SO4, HOCH3 1. KOCH3; 2. dil. HCl CH3 KHWhich reaction yields hexan-1-ol? Select one: OA. OB. O C. O.D. ~ OH 1. LIAIH₁, THF 2. H₂O NaBH₁ H₂O NaBH₁ H₂O 1. Hg(OAc)₂, H₂O 2. NaBH₁, HO5. Draw a detailed mechanism and give the products for the following Diels-Alder reaction. Label the Endo and Exo diastereomer. + ZON Ph
- . Base . The imol 1. The forme e. Bas perfo In 1 Orav cta 1. Steric hindrance is the unfavorable electron-electron repulsion that results when bonds are forced too close to each other. a. Draw the SN2 mechanism using curved arrows for the reaction of bromoethane with Nu:-. siz b. Draw the SN2 mechanism using curved arrows for the reaction of 2-bromopropane with Nu:. vtisizvod c. Given that steric hindrance is unfavorable, predict whether the SN2 reaction of bromoethane or 2- bromopropane would be faster. d. Determine in general the order of reactivity of all alkyl halides in an SN2 reaction (methyl, 1º, etc.)Determine the mechanism of nucleophilic substitution of each reaction and draw the products, including stereochemistr CH₂CH3 CI Br + CN d. + CH3COOH a. acetone + -OCH3 e. DMF f. b. C. ||||| a ||||| Br H Br CH2CH2CH3 + CH3OH DMSO H CH3 CI Br + OCH₂CH3 + CH3CH₂OHPerform retrosynthesis on the following molecule to break it into its original starting materials. In your work, you must include Diels-Alder reaction. .CI H. IZ