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- Please, I need help with the question below. I will rate it Explain which mechanism is predominant in each of the above elimination reactionsand how it affects the product formation. Thank you for your help.Which one of the following synthetic routes gives the best yield of meta-bromoaniline starting with benzene? NH2 HNO, 1) Sn. HCI Br, A. FeBr, H,SO, 2) NaOH Br metabromoaniline 1) Sn, HCI Br, HNO, В. H,SO, 2) NaOH FeBr, HNO, Br, 1) Sn, HCI C. FeBr H,SO, 2) NaOH 1) Sn, HCI HNO Br, D. 2) NaOH HSO FeBr, O A O B O C Ouestion 14 6 pts MacBook Pro Search or type URLMulti-step synthesis. Give the reagents over the arrows and the intermediates between thearrows that are required to synthesize the product compound on the left from the reactant givenon the right for each retrosynthetic analysis.
- Consider the following reaction. What is the role of LDA? CH2CH3 CHCO Et 1. LDA, THF 2. CH3CH₂Br CHCO₂Et LDA acts as a nucleophile and is substituted by the THF. LDA acts as a base and removes a proton from the alpha carbon to form the enolate. LDA acts as an electrophile and adds to the alkyl halide so it is easier to substitute. LDA acts as an acid to protonate the carbonyl carbon to form a good electrophile.3. Propose a plausible mechanism for the following transformation. HO ОН H2SO47. Which one of the following reagents will not transform an aldehyde to a carboxylic acia? C) MECOOH E) HOA9(NH3)2 then H30* D) Zn(Hg), HCI A) CrOs, H,SO4 B) KMNO4, H2SO4 8. Which one of the following reactions will not produce phenol (PhOH)? PhoCH3 PHOCH3 PhCH; PhMgBr PhN2* 1) MECOOH H20 Cu2O, H2O 1) LIAIH4 HBr, heat 2) H20, H;O*, heat 2) H2O, H3O* C 9. Which one of the following compounds will not react with F3CC=CCF3 in a Diels-Alder reaction -OMe B C 10. Which one of the following compounds is anti-aromatic? HN: : NH A B C 4
- How would you synthesize the following compounds from butanenitrile using reagents from the table? Use letters from the table to list reagents in the order used (first at the left). Example: ab Reagents 1. NaOH / H2O 2. H3O* SOCI2 1. NaBH4 a e i 2. H3O* 1. ВНз / THF 2. H202 / NaOH b f 1. LIAIH4 1. CH3CH2MGB I dry ether 2. H3O* 2. H3O* 1. (CH3)2CHMgBr / dry ether 2. H30* PBr3 NaCN k d Dess-Martin h Cro3 / H3O* conc. HCI periodinane in CH2CI2 a) 1-Butanol b) 2-Methyl-3-hexanoneZ. Whch one of the following reagents will not transform an aldehyde to a carboxylic acid? с) Месоон E) HOA9(NH3)2 then H30* D) Zn(Hg), HCI A) CrOs, HSO4 B) KMNO4, H2S04 8. Which one of the following reactions will not produce phenol (PHOH)? PHOCH3 PHOCCH, PhCCHs PhMgBr PhN2* 1) MečoOH H2O Cu,O, H2O 1) LIAIH4 HBr, heat 2) H20, H;O*, heat 2) H2O, H3O* C 9. Which one of the following compounds will not react with F3CC=CCF3 in a Diels-Alder reaction OMe B C 10. Which one of the following compounds is anti-aromatic? HN: : NH A B C 4Select the reagent(s) necessary for the given step of these synthesis pathways: Reagents available a. f. PBr3 CH3CH2COCI b. C6H5 COCI c. AlCl3 g. Mg, ether h. H2SO4, conc d. NaBH4, ethanol i. SOCI₂ e. H2SO4, dil j. C6H5 CN Scheme 1: Step 7: Step 2: Scheme 2: MgBr CH3 H3C CH3 H3C Step 5: Step 3: CH3 2 OH OH CH3 3 HO-C-C-H Br CH3 CH2CH3 CH2CH3 MgCl 3 2 H3C CH3 CH3 H3C CH3 5 6 .OH H3C CH3 H₂C CH₂ H3C CH3
- Please help with question 38How would you synthesize the following compounds from cyclohexanone using reagents from the table? Use letters from the table to list reagents in the order used (first at the left). Reagents a 1. CH3MgBr/dry ether 2 H3O+ e 1. OsO4 i 1. BH3/THF 2. NaHSO3/H2O 2. H₂O₂ / NaOH b 1. C6H5MgBr / dry ether f 1. NaBH4 j Mg / dry ether 2 H3O+ 2. H3O+ с PBr3 g HOCH2CH2OH/HCI k H2/Pd d m-chloroperbenzoic h H3O+ / heat I CrO3 / H3O+ acid m cyclohexanone a) cyclohexylbenzene b) 2-phenylcyclohexanone Submit Answer Try Another Version 3 item attempts remainingHow would you synthesize the following compounds from cyclohexanone using reagents from the table? Use letters from the table to list reagents in the order used (first at the left). Reagents a 1. CH3MgBr / dry ether 2 H3O+ e 1. OsO4 i 1. BH3/THF 2. NaHSO3/H₂O 2. H₂O₂ / NaOH b 1. C6H5 MgBr / dry ether f 1. NaBH4 j Mg / dry ether 2 H3O+ 2. H3O+ C PBг3 g HOCH2CH2OH/HCI k H2/Pd d m-chloroperbenzoic h H3O+ / heat 1 CrO3 / H3O+ acid a) 2-phenylcyclohexanone b) cyclohexylbenzene m cyclohexanone