2. Draw the structure of the major organic product that forms in each of the following reactions. Specify stereochemistry where appropriate. a) b) CH3CHCH₂CH CH3 + NaOH CH3CH₂OH-H₂O warm HCOCH₂CH3 1) NaOCH₂CH3 (1 eq) 2) aq HCI (cold)
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- Provide the structure(s) of the expected major organic product of the reaction shown. 1) Disiamylborane 2) H₂O₂, NaOH OI O II ||| O IV OV CH3CH₂C(CH3)2C=CH OH OH xx xo IVQ17. Compound 1 can undergo an intramolecular reaction to give cyclic product 2. Using curly arrows, show the mechanism of this reaction – note that the mechanism involves more than one elemental step - and draw the structure of 2; chemical formula is provided as guidance. H2N. C5H9NO CH;OH 2Which 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 KMnO4
- Which of the following compounds will form a yellow solid when dissolved in a basic, aqueous solution of I2?(a) butanoic acid; (b) pentan-2-one; (c) pentan-3-one; (d) cyclohexanone; (e) pentanalK app.101edu.co Lepadiformine is a cytotoxic marine alkaloid that has cardiovascular biological activity. Draw the product of this key SN2 reaction (shown below) used in the synthesis of lepadiformine. Use wedge and dash bonds to indicate stereochemistry where appropriate. Ignore inorganic byproducts. Br Si e H Draw SN2 product THFb) Listed below are several hypothetical nucleophilic substitution reactions. None is synthetically useful because the product indicated is not formed at an appreciable rate. In each case provide an explanation for the failure of the reaction to take place as indicated. OMe HO + OMe + OH HO + CH; OH
- 4. identify the structure of A and B in the following synthetic scheme: Write out complete reactions for each step, showing the structure of all reactants and products. (a) cyclohexanol +Na2Cr2O7/H2SO4, H2O -------> A (b) A + Et2NH/H2SO4 ----->BProvide the products formed from the reaction below. Hl(aq) (one equivalent)Draw the organic product(s) of the following reaction. CH3 H3C-C-CEC-H CH3 NaOC2Hs / CH5OH 1 eq. NANH2, NH3(1) CH;CH,CH,CH2-Br H-CEC-H H;C CH-Br H3C 1 eq. NaNH2, NH3() H3C-CEC-H
- (a) Give an acceptable name for each compound, (b) Draw the organic products formed when A or B is treated with each reagent: [1] H3O+; [2] −OH, H2O; [3] CH3CH2CH2MgBr (excess), then H2O; [4] LiAlH4, then H2O.Draw 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 asteChemistry 3. Complete the following reaction scheme. Give all product(s) and indicate major or minor and any relevant stereochemistry. (а) NaOEt heat (b) heat (c) Br NaCN DMF (d) (e) OH H,SO,/H,PO, heat (f) HBr (g) 1) BH. THE 2) H,0, OH (h) 1) Hg(OAC), H-0 2) NaBH, (i) KMNO, NaOH Cold