Place the correct letter in the type of splitting for the CH proton a. doublet b. triplet q, quartet q, c. d. (Y septet In the last lab synthesis below, what modification will be required 2. C 14 IU WITCH W Place the correct letter in the type of splitting for the CH proton a. I CH2CH I CH3CH doublet b. triplet CH3、 CH- CH3 C. quartet X-CH-CH-Y (XY) septet d. 3. In the last lab synthesis below, what modification will be required
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- 7 Best reuyent choice ? -> Br Br ota Pd 0) Fe H,0", 2) NaOHL ONz Hy Nu OH 18 Bar reaynt choice Z 7 HO 01) N.OCH2CH3,2)CICH 2CH2CH2C1,3)MOCH2 CH 3, 4204, heat H Na OCH,CH2, 2) CH3 CHz CHZBC, 3) tH;O" , heat 01 01/N0CHli3CHq,2) CHy =CHICH4,CH =0, 3) Hy O", heut2. For the following compounds, rank the indicated protons or carbons from most to least shielded (1= most shielded). Give an explanation for each ranking - electronegativity, magnetic anisotropy, and/or resonance. a. b. d. HA HO₂C HB NH₂ Тсон Hc HB H HcWhich compounds contain stereocentres? I. 2-methylpentane II. chlorocyclohexane III. 3-methyl-2-butanol IV. 2-hydroxypropanoic acid Select one: O a. I, II O b. III, IV O c. I, III O d. II, IV
- F. Build each of the molecules (a, b, c and d) drawn below (team/group work)__ Br Br Br Br b) C) d) e) CI-C-H H- -C-CI CI-C-H H-C-CI a) H CI-C- -CI -H CI H- -H -CI 2) What is the relationship of molecule a to molecule b? a)same molecule b)enantiomers c) structural isomers 3) What is the relationship of molecule a to molecure c? a)same molecule b)enanuom c) structural isomers 4) What is the relationship of molecule a to molecule alsame molecule b)enantiomers c) structural isomers 5)What is the relationship of molecule a to molecule e? a)same molecule b)enantiomers c) structural isomers 6) What is the relationship of molecule b to molecule c? a)same molecule b)enantiomers c) structural isomers 7)What is the relationship of molecule b to molecule d? a)same molecule b)enantiomers c) structural isomers 8) What is the relationship of molecule b to molecule e? a)same molecule b)enantiomers c) structural isomers 9)What is the relationship of molecule c to molecule d? a)same molecule…H3C₂ Br H₂O a. Enantiopure (1R, 3R)-3-Methylcyclohexanol b. Achiral 1-Methylcyclohexanol C. Racemic mixture (1R, 3R)- and (1S, 3S)-3-Methylcyclohexanol d. Diastereomeric mixture of (1R, 3R)- and (1S, 3R)-3-MethycyclohexanolMity.dorlocator%=Dassignment-take Not syn [Review Topics] [References] Br 1. +. KOt-Bu KBr HOt-Bu "Br Aqueous acetone H2O H3C HBr Br H OH optically active racemic a = Proton transfer e = Electrophilic addition h = Sy1 Nucleophilic substitution b= Lewis acid/base f= El Elimination i= S2 Nucleophilic substitution %3D c = Radical chain substitution g = E2 Elimination j= Electrophilic aromatic substitution d = Radical chain addition Identify the mechanism by which each of the reactions above proceeds from among the mechanisms listed. Use the letters a -j for your answers. 1. Submit Answer Retry Entire Group 8 more group attempts remaining 2. 2.
- Hh.108.Select an appropriate synthetic route of the diol shown starting with 1,1,3,3-tetramethyl-2-ethylcyclohexane. OH ОН + enantiomer 1. Br2, hv; 2. KOtBu; 3. HBr, ROOR; 4. KOtBu; 5. Br₂; 6. xs NaNH2; 7. CH3Br; 8. H₂, Lindlar's catalyst; 9. RCO3H; 10. H3O+ O 1. Br2, hv; 2. KOtBu; 3. HBr, ROOR; 4. KOtBu; 5. Br₂; 6. xs NaNH2; 7. CH3Br; 8. H₂, Pt; 9. OsO4, NMO; 10. NaHSO3, H₂O 1. Br2, hv; 2. KOtBu; 3. HBr, ROOR; 4. KOtBu; 5. Br₂; 6. 1 equiv. NaNH2; 7. CH3Br; 8. H₂, Lindlar's catalyst; 9. OsO4; 10. H3O+ O 1. Br2, hv; 2. KOtBu; 3. HBr, ROOR; 4. KOtBu; 5. Br₂; 6. xs NaNH2; 7. CH3Br; 8. H₂, Lindlar's catalyst; 9. OsO4, NMO; 10. NaHSO3, H₂O O 1. Br2, hv; 2. KOtBu; 3. HBr, ROOR; 4. KOtBu; 5. Br₂; 6. xs NaNH2; 7. CH3Br; 8. H2, Pd; 9. RCO3H; 10. H3O+C) CH,CH,-CH-O- D) H -O -CH,CH,- -H 5. Which of the following compounds is identical to the one shown below? H. H. -C C-H H. H -C H. A) H H. H- H. H. H. H. B) H;C CH,CH3 !! H. H. C) H-C C C- H. H. H-C-H H. H. H. H H H. D) H- H H H -C-H