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- Which of the following can complete the reaction below? O Br2/FeBr3 O NBS/(PhCO2)2 O H2SO4 in boling water O H₂, Pt, Ethanol at 130 atm. ?Complete the following reactions by filling in any missing reactants, reagents or products. a) Zn(Hg) conc. HCl b) ОН ? с) ОН РСС CH,Cl,7. The following scheme shows the intermediates in the mechanism for the synthesis of isoamyl acetate, an ester with a characteristic banana flavor. Classify steps 1, 2, 3, and 4 as addition, elimination, substitution, or acid base reactions. lo ОН gor H2SO4 2 HO HO QH₂ H2SO4 1 .H ОН له عليه ملا 4 HO 3 لیڈ جل OH HO OH + H2O H
- PWM4SGa Which SN2 reaction will occur most slowly? (Assume the concentrations and temperatures are all the same.) A CH,O + CH, + CI- В CH;0 +^ CH CH; CH;0 +/^ it D CH,0" CH Br + BrWhich of the reactants should be used to complete the reaction below? ? OA OC OD A 1) (CF₂COO),Hg. CH₂CH₂OH 2) NaB H₂ OH B C CH₂ OCH₂CH₂Which compound is the dominant product in the reaction shown below? KMNO4 .COOH (A) H*/H,O (B) COOH .COOH (C) (D) HOOC HOOC Compound B Compound C Compound D Compound A
- Which SN2 reaction will occur most rapidly? (Assume the concentrations and temperatures are all the same.) * CH;0 + ^CI CH3 + CI- CH, B CH,0 + CH + F CH,O + CH, CH,O Br Br D9. NAHSO3 CH3 - C- CH3 19)_ 10. _(10a) NaOH → HC-O-Na + _(10b)_7. The reaction of methoxide anion with bromoethane to yield the ether ethyl methyl ether and the bromide anon (Br-) is an excellent example of a general reaction type called Sy2 (substitution nucleophilic bimolecular): CH,0+ CH,СH-Br a CH3-0-CH,СH; + Br- a. Change in enthalpy is -103 kJ/mol; the change in entropy is + 0.025 kJ/mol-K. Calculate DG at 300K. b. Is the reaction endergonic or exergonic? c. Is the reaction endothermic or exothermic? d. Use curved arrows to show the complete mechanism. Reaction of 2-methyl-1-butene with H-Cl could yield TWO alkyl chloride products. Draw and name 8. them.
- How can you accomplish the reaction below? OH TsCl, pyridine H₂O, H₂SO4 H₂SO4 (conc.) 1. HI; 2. NaOH, EtOH 1. PBr3. pyridine; 2. BUOK, IBUOH BUOK, IBUOH 1. SOCI₂, pyridine; 2. EtONa, EtOHWhat Is the starting materlal of this reaction? Click on a letter A through D to answer. CH,OH H+ cat. А. С. В. OH D.1. Draw the product(s) of the following reactions 1. Br,, CH,OH 2. DBN (a) 1. ВНз 2. H2O2, NaOH (b) 3. PBr3 1. Н.О, Н2SO4 2. NaH, CH,Br (c)