3 Provide the reagents for the following reactions as well as the curved arrow mechasson for...
Chemistry 12A Substitution and Elimination Reactions 1. Provide complete curved-arrow mechanisms for the following transformations, Label the overall mechanism as: E1, E2, S,2, or Sy1 and explain in 1 sentence WHY that mechanism is favored. Br OH OH Br кови Hао Br "ОН conc. H2SO4 "Он
Curved Arrow Formalism Identify the name of the curved arrow type in the following reactions Hadio OH OH OSO O=S=0 H 18-3-890 + S03
15. Provide a curved arrow mechanism for each of the following transformations. OH (a) CH3ONa CH3OH HBO Br (b)
7. Provide a curved arrow mechanism and predict the product for the following SN2 reactions. (9 pts) Br H2N a) O Na b) C Cl NaCN c) 7. Provide a curved arrow mechanism and predict the product for the following SN2 reactions. (9 pts) Br H2N a) O Na b) C Cl NaCN c)
15. Provide a curved arrow mechanism for each of the following transformations. OH (a) fyr CH3ONS CH3OH as HBr Br (b)
4. Provide a complete curved-arrow mechanism for each of the following transformations involving conjugate addition Note that no stereochemistry is shown or implied in any of these reactions, and you may neglect it in your mechanisms as well. a. For this mechanism, you may assume that the reagent NaBH.CN behaves just like NaBHs, and that it preferentially performs 1,4-addition to unsaturated carbonyl compounds. O ! OME OMe H 1. NaOE, ETOH 2. NaBH CN, MOH oMe ОMe OME OME EtOXOE...
2. Provide a complete curved-arrow mechanism for each of the following transformations ed on 2 KO'Bu BUOH Etoo (1 equiv)
a) Provide a complete curved arrow mechanism for the following reaction. Include the generation of the active electrophile from the reagents given. (8 points) Brą, FeBry Br
3. Provide a complete curved-arrow mechanism for each of the following transformations OH 에 HAOLO 1. NaOH cat 2. NaBH, MOH - HO HOON N (Hint: recall from lecture that sugars like this often exist as hemiacetals!) no HO CN NaCN, ETOH 80 °C T
Please assist with question 4a. Propose a curved-arrow mechanism for one of the following reactions below. 3(25 pt.) Answer the following questions using the reaction below: HC cho HC CH conc. HCl(aq) U come. HCl(aq) a). Provide a curved-arrow mechanism for this reaction. .b). Compare the two compounds provided below: Ha tots Ho cho осн, Compound A Compound B Which of these two compounds, if any, will react faster when added to conc. HCl(aq)? Provide a brief explanation for your...