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- + hv H.2 + Propose a mechanism for the reaction that fully accounts for the formation of both products.X6-156. Arrange the following substituted anilines in increasing order of reactivity toward acetic anhydride: sllo NH2 ร้อเป็น NH2 NH2 edi NH2 O₂N. (a) (b) ---- (c) (d) bund NO2 CI H3C-N-CH3 Insmiy X 6-157. Suggest a mechanism for the preparation of acetic anhydride from acetic acid and acetyl chloride in the presence pyridine (an amine base).(a) Propose a mechanism for reaction A, which is a substitution reaction. (b) Explain why reaction B does not lead to a similar substitution.
- Chemistry 60. Give the principal product(s) expected, if any, when trans-1,3-pentadiene reacts under the following conditions. Assume one equivalent of each reagent reacts unless noted otherwise. (a) H2O, H3O+ (b) Na+EtO- in EtOH (c) Maleic anhydride heatProvide the product and mechanism for the following reaction: 1. C12 (1 equivalent), AIBN, heat 2. 3. BH3 4. H2O2/NAOHCan you show the steps for (a)
- 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) Draw the mechanism for the formation of both of the enols that can be formed from A (use acetic acid & AcOH as the source of the protons) (b) Draw the mechanism of reaction of this enol with bromine to give product BIII. Propose a reasonable mechanism for the following reaction: & NaOH, H₂O
