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Which of these structures fit the following descriptions? Select all that are correct.
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- S. Et only H. OCH OCH, HạCEt S1 products Et+ Et CH3 JE1 products H-C CH3 major CH2 minos QUESTION 11 Which of the following alkyl bromides undergoes solvolysis in methanol without rearrangement? O (R)-2-bromo-3-ethylpentane O (S)-2-bromo-3-ethylpentane O R)-3-bromo-2-methylpentane O (S)-3-bromo-2-methylpentane O3-bromo-3-ethylpentane Туре: МС QUESTION 12 Which of the following alkyl halides are correctly named? Choose all correct answers.#16f. Provide the missing reactants, reagents, or products for the following reaction sequences below.OH 1. H20 HI 2. BH3 O-BH3 d = El Elimination f = SN1 Nucleophilic substitution a = Proton transfer e = E2 Elimination g = SN2 Nucleophilic substitution b = Lewis acid/base c = Electrophilic addition The rections above involve synthesis or reactions of alcohols and ethers. Identify the mechanism by which they proceed from anmong the mechanisms listed. Use the letters a - g for your answers. 1. 2. Submit Answer Retry Entire Group 8 more group attempts remaining
- Predict the product for the following reaction. CH;OH/ H2SO4 Which is the MAJOR product of the following reaction? O,N Br2 FeBr3 Which of the following is the MOST appropriate reagent for the following reaction? ? CH;CH;CH;CH;CH;CI, AICI, (1) (CH);CCOCI, AICI, (2) Zn(Hg), HCI © (CH);CCH;CI, AICI, (1) (CH3)½CHCH;COCI, AICI, (2) Zn(Hg), HCIBr Brz CH3 CH3 H3C CH2CI2 H3C Br Electrophilic addition of bromine, Br2; to alkenes yields a 1,2-dibromoalkane. The reaction proceeds through a cyclic intermediate known as a bromonium ion. The reaction occurs in an anhydrous solvent such as CH,Cl). In the second step of the reaction, bromide is the nucleophile and attacks at one of the carbons of the bromonium ion to yield the product. Due to steric clashes, the bromide ion always attacks the carbon from the opposite face of the bromonium ion so that a product with anti stereochemistry is formed. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions Br: :Br: .CH3 H3C H3C CH3 Br:Q. Which is the main reduction product of the following compound with NaBH, in methanol? `NMe2 OH `NM@2 a) OH он b) OH c) OH d) Which is the main reduction product of the following compound with LIAIH, in ether followed by an aqueous workup? OH NME2 a OH OH b) `NMe2 Он NME2 он d) `NME2 0=
- what series of synthetic steps could be used to prepare 1-methylcyclohexanol from cyclohexane?5. Propose the synthesis of the following compounds (any two) from benzene using diazonium replacement reaction. coH HOH a) b) c) CH3 CIa) There are two possible pairs of carbonyl compounds and ylides to prepare the following alkene via Wittig reactions. H CH3 i. Propose both pairs of the starting reactants. ii. The above alkene can be converted to an aldehyde and a ketone. Provide a suitable reagent and reaction condition for the conversion.
- он 1. aqueous H2SO4 -CH3 CH3 2. H2SO4 H20 но 130° a = Proton transfer d = El Elimination f= Sy1 Nucleophilic substitution b = Lewis acid/base e = E2 Elimination g = SN2 Nucleophilic substitution c = Electrophilic addition The rections above involve synthesis or reactions of alcohols and ethers. Identify the mechanism by which they proceed from among the mechanisms listed. Use the letters a - g for your answers. 1. 2.Alkyl diazonium salts are unstable even at low temperature. They decompose to form carbocations, which go on to form products of substitution, elimination, and (sometimes) rearrangement. Keeping this in mind, draw a stepwise mechanism that forms all of the following products. NANO2 он + HCI, H2O NH2 онTaplel 12 Q6. Give the starting alkene and regents needed to make the epoxide shown. Q7. Draw a reasonable mechanism for the reaction scheme provided below and draw the structure of the product. Br 1. NaOMe, heat 2. MCPBA 3. CH,MgBr 4. H,o Q8. Give the reagents needed to convert the starting alkene to each of the three products drawn in the diagram. он HO.