V. In the following reaction: CH3CH₂Br + CH3COOK → CH3COOCH₂CH3 +KBr Adding a small amount of sodium iodide increases the reaction rate significantly. Please using the reaction mechanisms, nucleophilicity and leaving group quality to explain.
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- Complete the following reaction scheme. 1. DIBALH 2. H3O+ TMSCI Pyridine 1. LIAIH(t-BuO)3 SOCI2 2. H3O+ CrO3 H3O+3. Propose a reasonable mechanism for the following cyclization reactions. Then classify the cyclization and identify if the product would be favored or disfavored based on Baldwin's Rules. O a. b. C. НО. Br Ph Ph OCH 3 OH nBuLi NaOH H₂O عليم H₂SO4 1Write out the expected splitting pattern for hydrogens Ha, Hp and Hc 3Jab = 10 Hz На Hb 3Jpc = 7 Hz CI Hc Hc Ha:Hb:Hc: doublet, quartet, doublet Ha:Hb:Hc: quartet, quartet, triplet Ha:Hb:Hc: doublet, doublet of triplets, doublet Ha:Hb:Hc: doublet, triplet of doublets, doublet
- the reagents are LiAlH4 Et2O / H2O, can you please redo with these reagents? Thank you.Determine 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 + CH3CH₂OH. Provide the reagents necessary to carry out the following conversion. OH u NaOH/H₂O 1. NaOCH3, 2. H₂O¹ 1. (CH₁) COK, 2. BH3, 3. H₂O/NaOH/H₂O | 1.(CH3)COK, 2. HO
- Which is the MAJOR product of the following reaction? Et 1) BH3:THF 2) H2O2, NaOH Which of the following best describes a key step in the mechanism for the reaction below? HO ... CH3 -CH3 dihydroxylation + en H3C- H3C- HO. electrophilic addition reaction to form a carbocation intermediate B nucleophilic attack by an alkene to form a cyclic (epoxide) intermediate elimination reaction by abstraction of a beta-hydrogen D free-radical substitution at the carbonyl carbon Which alkene will produce the HIGHEST yield of the alkyl halide below? Br. alkene HBr |a.) b.) LOCH 3 CHO Determine and draw the product of the following reactions. HNO3 / H₂SO4 HNO3 / H₂SO4 c.) ОНС d.) CH3 OCH3 CH3 OCH3 HNO3 / H₂SO4 HNO3/H₂SO46) Complete the following mechanism. (D and SN2) H Br. NaH "H: " 7) Complete the following mechanism. (D and SN2) H NaH "H: " Br. SN2 Good Nucleophile SN2 ether THF
- Choose the reagent(s) that would be most likely to complete this reaction. I||| / A B C D 1. BH3-THF 2. H2O2, NaOH Br₂ H₂O OsO4 (catalytic) NMO RCO3H DoneWhich compound is the major product of the reaction below? QH (1) LIAIH,/ether N. N. N. (2) H* (dil.)/H,O (A) (B) HO, (C) (D) O Compound B O Compound A Compound C Compound DProvide the reagents. Но + enantiomer A 1. KOt-Bu, heat 2. mCPBA 3. MeMgBr 4. H2O B. 1. conc. H,SO4, heat 2. MCPBA 3. MeBr С. 1. РBгз 2. KOt-Bu 3. mCPBA 4. MeMgBr 5. H2O D. 1. Br2, hv 2. KOt-Bu 3. mCPBA 4. MeMgBr 5. H2O E. 1. Br2, hv 2. KOt-Bu 3. MCPBA 4. MeBr 5. H2O F. 1. Br2, FeBr3 2. KOt-Bu 3. mCPBA 4. MeMgBr 5. H2O G. 1. Br2, FeBr3 2. KOt-Bu 3. mCPBA 4. MeBr 5. H20