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![9. Which reagent from the list below reacts with
R-2-butanol to form only S-2-bromobutane? (3 pts)
Br2
HBr
PBг3
H2O2/NaBr](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6196d796-cae6-4f62-b2ab-a8a75a1dbbd7%2Fa625d93c-406a-4efb-8efc-70ad2cf31971%2Fzf88wfg_processed.jpeg&w=3840&q=75)
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- (9) CH3CH2CH=CH2 + HBr peroxides ( 10 )CH3CH,CH=CH2 + HBr (11 Br .CH3 1) ВН, THF 2) H2O2,OH (12)Fill in the missing product/reagents5 The compounds labeled benzophenone-3 (CH,O,) and benzophenone-5 (CHNAO,S) are found in certain sunscreens. Would you expect a sunscreen made with benzophenone-3 or benzophenone-5 to be more waterproof? Explain your choice.
- When 2-pentene is treated with Cl2 in methanol, three products are formed. Account for the formation of each product (you need not explain their relative percentages).B) For a time the prism formula VI, proposed by Albert Ladenburg of Germany, was considered as a possible structure for benzene, on the grounds that it would yield one monosubstitution product and three isomeric substitution products. (7 Marks) CH--CH CH ČH- -CH CH VI (a) Draw Ladenburg structures of three possible isomeric dibromobenzenes. (b) On the basis of the Korner method of absolute orientation, label each Ladenburg structure in (a) as ortho, meta, or para.11th S What is the product of this reaction? Br hilly CHISO acetone (A) 1 (B) 11 (C) 111 (D) None of these
- From the table of available reagents select the one(s) you would use to convert:3-pentanol to 3-bromopentane:cyclopentanol to trans-2-methylcyclopentanol:Use the minimum number of steps; in no case are more than four steps necessary.List reagents by letter in the order that they are used; example: fa.Which of the following reactions will synthesize phenol from benzene? 1) HNO3 + H2SO4; 2) Fe, HCl; 3) NaNO2, HCl, 0-10 oC; 4) warm H2SO4 and H2O 1) HNO3 + H2SO4; 2) Fe, HCl; 3) NaNO2, HCl, 0-10 oC; 4) CuCN; 5) dilute acid and heat 1) Acetyl chloride & AlCl3; 2) bleach 1) Ph-N2+ + KI; 2) BrMgCH=CH2 in ether, followed by H3O+; 3) warm, conc'd KMnO4 1) Cl-CH(CH3)-CH2CH2CH3 + FeBr3; 2) hot, conc'd KMnO4Fill in the missing products and intermediates
- Suggest a suitable series of reactions for carrying out the following synthetic transformation. You must state and identify each step you made and you must also state why the order of the steps was important. (6 pts) OCH3 4. OCH3 O2N. to OCH3 OCH3 Č(CH3)31. For the carbonyl compounds shown below, identify those that are best suited for nucleophilic addition reactions and those that are cable of nucleophilic substitution reactions. لو لايلو لي على I I II I 2. Which carbonyl compound would react the fastest during a nucleophilic substitution reaction? (3 pts) 0 II I III COOH III II 3. Which carbonyl compound would react the slowest during a nucleophilic substitution reaction? ( 4. Rank the following compounds in order of increasing acidity OH COOH IV - NO2 IV لي للبلابل III IV *NH2 V CH3 V *NHz V NH₂ COOH IV مي OH BrEnamines formed from the cyclic secondary amine pyrrolidine are important intermediates in the synthesis of 1,5-diketones. (1st pic) On the structures provided below, draw arrows showing electron flow for the reaction mechanism for the acetic acid-catalyzed formation of an enamine from cyclohexanone and pyrrolidine. (2nd pic)
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