18. Determine the mechanism for the following reaction (SN1, SN2, E1, or E2). Show the step-wise mechanism and product(s). Determine the major product if one is present. (3 products) OH H2SO4
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- 17. Determine the mechanism(s), SN1, SN2, E1 or E2 for the following reaction. Show the step-wise mechanism(s) and determine the product(s). Indicate major product if one is present. Include stereochemistry at stereogenic centers if any are present. (3 products) KOH THF 18. Determine the mechanism for the following reaction (SN1, SN2, E1, or E2). Show the step-wise mechanism and product(s). Determine the major product if one is present. (3 products) OH H₂SO4List all alkene products for each reaction. Write a mechanism for the formation of each product following E1 or E2 mechanisms as appropriate. Be sure to draw arrows for the mechanism.*Provide the product(s) of each reaction below. Label each product with the reaction mechanism that produced it (SN2/SN1/E1/E2) and point out major vs. minor elimination products. Pay attention to stereochemistry as appropriate. Br H;CO. ONa CI Nao b) CF3 Ph Br CD,OH c) Ph
- Identify the major product of the following reaction sequence. 1) [H*], H₂NNH2, (-H₂O) 2) KOH/H₂O, heat HO₂C HO₂C HO CO,H OH OH There is no reaction under these conditions or the correct product is not listed here.Be sure to answer all parts. Draw all products, including stereoisomers, in the following reaction. NaOH CI Part 1: Identify which mechanism(s) the reaction will undergo. Sy1 Sy2 O El 2 E2 Part 2: The number of S 2 product(s): 1 The number of E2 product(s): 2 Part 3 out of 3 The Sy2 product: draw structure . The E2 products: draw structure . draw structure . (major) (minor) Need help with part 3Which mechanism, E1 or E2, will occur in each reaction?
- 2- Mention the product of a nucleophilic substitution reaction of (S)-2-bromohexane with acetate ion, CH3CO2- Assume that inversion of configuration occurs, and show the chemistry of both the reactant and product. 3- Draw the mechanism of the SN2 Reaction. Show the correct directions of the arrows, and all reagents. 4- Draw the mechanism of the SN1 Reaction. Show the correct directions of the arrows, and all reagents. 5- Draw the mechanism of the E2 Reaction with an Alkyl Halide. Show the correct directions of the arrows, and all reagents. 6- Draw the mechanism of the E1 Reaction with an Alkyl Halide. Show the correct directions of the arrows, and all reagents. 7- Mention the product formed in an SN2 reaction between 1-bromobutane and NaI. 8- Rank the following compounds in order of their expected reactivity toward SN2 reaction: CH3Br, CH3OTos, (CH3)2CHCl. 9- Explain Grignard Reagents in details with one example. 10- Mention how a halogen substituent can be replaced by a deuterium atom…Why won't most primary alkyl halides react in Friedel-Crafts alkylation reactions? O Primary alkyl halides undergo methyl shifts under the standard conditions of Friedel-Crafts alkylation reactions, making them unreactive. Primary alkyl halides create primary carbocations which are too high in energy and too readily undergo rearrangement. Primary alkyl halides do not form a sigma complex after a nucleophilic attack since they connect at the primary carbocation site. Primary alkyl halides as a reactant violates one of the three standard limitations to Friedel-Crafts alkylation reactions.Draw all products, including stereoisomers, in the following reaction. CH3 CH,COO Part 1: Identify which mechanism(s) the reaction will undergo. Syl D Sy2 SN2 El O E2 Part 2: The number of S1 product(s): 1 The number of El product(s): 2 Part 3 out of 3 The Syl product: draw structure ... CH: The major El product: edit structure #33 The minor El product: edit structure
- Complete the reaction scheme below. Show all reagents and intermediates. No reaction is a possible answer. 1) CH3CH2M9B CH3OH H+ (ехcess) но 2) H30*, H2O B A OCH33. Both El and E2 reactions are possible with 3° alkyl halides. Which elimination mechanism would be favored by the base NaOH? Show the curved arrow mechanism leading to both regioisomers. Draw the energy diagram for this reaction and include the transition state structure leading to each of the possible products. Indicate which one would be favored and use the energy diagram to explain your reasoning. How would you favor the other regioisomer? Br z odd NaOHProvide a mechanism with products for the reaction above. CH3 2Na/Liq.NH₂