11.-15. Match each reagent to how it reacts with Y is from the reagent. Answers may be repeated. 11. Br₂ 12. HSCH3 13. NaBH4_ 14. NH₂OH 15. (CH3)2Cu Lit HO. a. b. C. d. e. not a.-d.
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- Br ÓCH, a. SN1 & E1 b. SN1 & E2 c. SN2 & E1 d. SN2 & E2 21. What is the reagent used for the following reaction? foid W a. BH3/THF, then H2O2/OH b. Hg(OAc)2/H2O, then NaBH4 с. Н2О, Н* d. H2, Pd/C 22. What is the major product for reaction below? H,SO4 OH d. none b. с. a. 3. Arrange the following substrates in order of increasing their SN2 reactivity with NaC bentane,مگر compound e Reagents a. HX b. c. H₂O, H₂SO4 d. X₂ e. H₂. Pd 1. X₂, H₂O g. Oso, then NaHSO, h. 1. j. HBr, H₂O₂. hv k. 1. compound a bb Hg(OAc)₂, H₂O then NaBH, BH, then H₂O₂. NaOH O, then (CH₂)₂S 2 equivalents of NaNH₂ H₂, Lindlar's catalyst P. adi✔ m. Na/NH₂ n. H₂SO₂, HgSO4 o 9₁ bb r. compound b compound c S L PBr u SOCI₂ V. H₂PO w. H₂CrO₂ X PCC compound f (sia) BH then H₂O₂, NaOH 1 equivalent of NaNH₂ NBS, hy Br₂, hv (CH₂)₂CO¹K* compound d y. Z aa. bb. Na 104 mCPBA NaOH, H₂O compound gWhich is the best method for the following transformation? OH A. 1. BH3, THF 2. H₂O₂, OH- B. H¹, H₂O C. concentrated H₂SO4 D. 1. Hg(OAc)2, H₂O 2. NaBH4
- Which starting material produces the two products shown after ozonolysis and a reductive workup? 1. O3 2. DMS C. А. D. В. A.Hh.108.12. Which reagents/conditions would lead to the transformation depicted below in high yield? a. NaOMe, MeOH b. MeOH, H₂O* c. NaOEt, EtOH 13. In the structure of 2-fluoropropanoic acid shown, the oxidation number on C1 is the oxidation number on C2 is a. +1, +2, -3 b. -3, +1, +3 d. NaOH, H₂O e. two of these , and the oxidation number on C3 is, c. 0, 0, 0 d. +3,0,-3 e. +2,0, -2 ??? OH 14. What will be the outcome of the following reaction sequence? B. 1. NaOEt, EtOH 2. PCC 3. isopropylMgBr 4. H₂0¹ ??? a. 2-ethyl-3-isopropyl-2,3-dimethyloxirane b. 2,3,4-trimethyl-3,4-epoxyhexane c. 1,2,3,4-tetramethyl-2,3-epoxypentane d. Both a and b are suitable. e. All of the above are correct. OH 15. What is a suitable IUPAC name for the structure shown at the right? OH D. F H OH LOH CH3 3 OH
- Which product will be formed from this E2 reaction ? CH2C H3 H CHCH3 H CH2CH3 CH2CH, base (E2) H2C CH2CH3 H. H;C H. H. H,C H3C H3C H. II II IV O a. IV only Ob. II and IV O c. II and IV Od.lonly O e. Il onlyWhat is the missing reagent in the sequence below? A. HBr B. Br₂ (dark) C. Br2, FeBr3 D. Br₂, hn (or NBS) O A OB O C 1. Zn(Hg), HCI 2. Missing reagent 3. NaOEt (E₂) ODWhat is the best reagent used for the following reaction? H3C H3C ОН Н ? H- ? H3C H3C H. A O ВНз /Н202 .B Hg (OAC)2 / NABH4 .C O H30* /HgsO4 .D O Li /NH3
- Choose the most correct set of reagents for the following reactions. 1.? OMe 2. ? a. 1. MsCI, pyridine; 2. NaOH, H2O2, H2O b. 1. HCI, pyridine NaOCH3, CH;OH c. 1. Pl3, pyridine; 2. NaOCH3, CH;OH d. 1. TSCI, pyridine; 2. NaOCH3, CH3OH e. 1. CH30", pyridine; 2. H* f. 1. PBr3, pyridine; 2. H*Name the following structure CI 1111 A. (45)-4-Chloro-4-methyl-2-hexyne B. (35)-3-Chloro-3-methyl-4-heptyne C. (3R)-3-Chloro-3-methyl-4-hexyne D. (4R)-4-Chloro-4-methyl-2-hexyneDevise a 4-step synthesis of the product from the starting material. CH3 1. reagent 1 2. reagent 2 H3C HO. 3. reagent 3 4. reagent 4 H3C H. Select reagent 1: Select reagent 2: NH, CH,, cat. H,0+ CH, MGB. Select reagent 4: H, Pd NaBH, LIAIH,