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- Q5. A. Complete the incomplete reactions. Also write stepwise mechanism for the given reactions. CH3 i. BH3, THE ii. H2O2, HO Br H20 ii. H3C OH H. H3C Br Br2, H20 CH3 Br OH organic solvent CH3 КОН CI V. + CHCI3 KCI CIWhich reaction can be used to carry out the following transformation? A. B. 1. AICI 3 AIC13 2. HCI, Zn(Hg) C. Either is okay D. Neither will workIdentify a suitable reagent to carry out the transformation. OH H. OH Identify the reagent. 1. NaCN; 2. H', Н,О 1. NaBH4 2. НBr 3. Mg 4. CO, 5. H*, H,O NaOH Na, Cr, 0,, H,O, H, SO,
- Which sequence of reactions can be used to carry out the following transformation? A. B. 1. ia CI, AIC13 2. Cl2, FeCl3 1. Cl₂, FeCl3 2. i₁. AIC AlCl3 CI C. Either D. Neither CIIdentify the sequence of reactions that successfully completes the following transformation. Ph A. 1. BH3 2. H₂O₂ / NaOH _3. P, l₂ B. HI, ROOR, hv C. 1. HBr, ROOR, hv 2. Nal, acetone D. Choices A and C PhWhat is the major product of this reaction sequence? 1. ELONA/E1OH 2. ВГCH-CH2CH3 (1 ед.) 3. НО", heat 67. b. C d. ОН HO. dl lo
- What reagents are needed to carry out the conversion shown? CH,Br CH2CH2NH; A 1. NaN3; 2. LİAIH4; 3. H20 В 1. CH3NH2; 2. NaBH3CN C 1. HNO3/H2SO4; 2. H2/Pt D 1. NaCN; 2. LİAIH4; 2. H2OWhich synthetic route(s) would complete the reaction shown? Br || ||| I and II O I and III ? HO OH + enantiomer Synthesis I: 1. NaCCCH3; 2. Na/NH3(I) ;3. OsO4; 4. NaHSO3, H₂O Synthesis II: 2. NaCCCH3; 2. H2, Lindlar's catalyst; 3. MCPBA; 4. aq. H₂SO4 Synthesis III: 1. NaCCCH3; 2. H₂, Pt; 3. MCPBA; 4. aq. H₂SO42. a. b. d. C. oFor each reaction, draw the product(s) and circle the mechanism(s). Include "major be and “minor" when necessary. Stereochemistry must be included for stereoselective reaction "No reaction" is a possible answer. Br Br ts Br CI ta ха но Br CH3ONa CH₂OH KSH acetone Br₂ hv CH3OH NaCN DMSO ser nongaholds zid) no baard E2 E1 SN1 SN2 X. E2 E1 SN1 SN2 X. E2 E1 SN1 SN2 X. E2 E1 SN1 SN2 X• E2 E1 SN1 SN2 X• E2 E1 SN1 SN2 X.
- Provide the missing intermediates and final product in the following synthesis. 1. LDA (excess). A 2. Н,о Br2 1. NaH В 2. C H,/Pd CI4 Lindlar catalyst ВА 1. CH,MgBr H,CrO4 D E 2. NH,CI, H,O F GDetermine the mechanism of nucleophilic substitution of each reaction and draw the products, including stereochemistr CH₂CH3 CI Br + CN d. + CH3COOH a. acetone + -OCH3 e. DMF f. b. C. ||||| a ||||| Br H Br CH2CH2CH3 + CH3OH DMSO H CH3 CI Br + OCH₂CH3 + CH3CH₂OHIdentify the missing reagent(s), reactant(s) or final product(s). Some transformations may require more than one step. Br ? Br D. E. in ? ? LIAIH