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- Draw the products of the reaction shown below. Use wedge and dash bonds to indicate stereochemistry. Ignore inorganic byproducts. 1. Os04 2. NaHSO3, H3O Select to Draw Select to DrawDraw the major product from this reaction. Use a dash and/or wedge bond to indicate the stereochemistry of substituents on asymmetric centers, where applicable. Ignore acid byproduct. 1. Br2, H₂O 2. NaH Drawing QDraw the major product of this reaction. Use a dash or wedge bond to indicate the stereochemistry of substituents on asymmetric centers, where applicable. Ignore inorganic byproducts and CO2. › · ·||| 1.03 2. Zn, HOAc ✔
- Draw the major product of this reaction. Ignore inorganic byproducts. 1. CrO3, H2SO4 H 2. Neutralizing work-up DrawingDraw the major product of this reaction. Ignore inorganic byproducts. 0 1. CrO3, H₂SO4 2. Neutralizing work-up H .Provide the structure of the product(s) with stereochemisty if appropriate. If multiple products indicate major product or if products are formed in equal amounts. If there is no reaction expected explain why. 1. PPH, 2. KOIBU Br 3. H2, Pd/C H3C H,C- 1.O3 2. Me,s 3. HNNH2, KOH, A H3C. „CH3 H* (H,0] H
- Draw the major product from this reaction. Use a dash and/or wedge bond to indicate the stereochemistry of substituents on asymmetric centers, where applicable. Ignore acid byproduct. 1. Br2, H₂O 2. NaOH Q2. Explain the selectivity of the following reaction, which produces a single product despite both alkene carbons being equally substituted. H3C CF3 HBr CF3 H3C CF3 H3C Br- H3C only product -H CF3Reactivity. Explain the regioselectivity and stereochemistry observed in each of the following transformations.
- 2. Draw the structures and explain why CH3CH₂O and CH3CO₂ are good nucleophiles but CH3SO3, water, and alcohols (R-OH) are poor nucleophiles. Propose a 'cutoff' for the amount of negative charge needed to be a good nucleophile. CH3CH₂O CH3CO₂ CH3SO3 H₂O CH₂OH1) With the information given, draw the correct chemical structures (in standard bond- line) in each box. Pay attention to stereochemistry where appropriate. TsCl forms a good leaving group. 2,4-dimethyl-2-pentene H₂O* 1. BH₂ THF 2. H₂O₂, NaOH TsCl, pyridine TsCl, pyridine KOC(CH3) NaSCH₂. DMSOGiven the following reaction sequence, determine the structures of A and B, including proper stereochemistry. Br NaOH A DMSO 1. CH3(CH)3Li В 1. NaH 2. CI- Br 2.