Fill in the boxes below with the necessary reagents. Each box must be one synthetic step (i.e., one reaction), but some reactions are 2- or 3-part reactions (e.g., reactions that require a work-up step). A reaction that is one synthetic step, but includes multiple parts, should be shown with i), ii), and/or iii) in the same box. OH OTs Br
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- SYNTHESIS: Provide a synthesis of the final product (right) from the given starting material (left) by filling the numbered boxes with the required reagents. Each box must be one synthetic step (i.e., one reaction), but some reactions are 2- or 3-part reactions (e.g., reactions that require a work-up step). A reaction that is one synthetic step, but includes multiple parts, should be shown with i), ii), and/or iii) in the same box. Then draw out the full synthesis below including the product after each step. Ignore stereochemistry. number of steps if you believe it will work. You may use a different 1) Br 2) 3) OH OH[References] Draw the major organic product of the reaction shown below. OH ܠܐ • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Include cationic counter-ions, e.g., Na* in your answer, but draw them in their own sketcher. + NaH CH₂ ? ChemDoodleⓇ • Sn [F <2. (10 points) Complete the reaction scheme below. Show all reagents and intermediates. No reaction is a possible answer. 1) CH;CH,MgBr CH,OH H+ (excess) но 2) H,O*, H20 в A OCH3
- b) Design a synthetic scheme using the reagents given for the following two reactions. All reagents are used for each reaction scheme and in each case, a reagent can be used more than once. Take the necessary time to complete this question. i) = 2 eq. ii) 2 eq. O O H₂/Lindlar's catalyst Br₂/CH₂Cl₂ Se joon NaH H₂O+/H₂O H H₂/Lindlar's catalyst PCC/CH₂Cl₂ NaH lan -H H3O+/H₂O CH₂BrBromohydrin 2, a constitutional isomer of Bromohydrin 1, can also be prepared in two steps from the same alkene. Fill in the boxes below with the necessary reagents. Each box must be one synthetic step (i.e., one reaction), but some reactions are 2- or 3-part reactions (e.g., reactions that require a work-up step). A reaction that is one synthetic step, but includes multiple parts, should be shown with i), ii), and/or iii) in the same box. Br 1) HO, 2) Bromohydrin 2Which statement is false? a. A mechanistic step may include many synthetic steps. b. A synthetic step may include many mechanistic steps.
- In each reaction box, place the best reagent and conditions from the list. 2. H₂C-C C-H | NINH, CH, Br CH,CH,Br NaOH, H₂O 3. NaBH H₂, Pt Answer Bank CH,CH,CH,Br Oso. NaHSO,. H₂O HO BH,, THF OH "CH,CH, HJCm LÀ, NH, (0) H₂, Lindlar's catalyst HO CH₂CH OHIV = II Use the letter (a-k) in the box provided for the reagent required for the each of the given reactions. The product shown must be the expected major product of each step. Assume one mole equivalent of each reagent unless specified otherwise and suitable workup after each step as appropriate. You must place the letter - and only the letter- of a reagent in the box. Each box can have only one letter. a. NaBH4, CH3OH b. LiAlH4, THF c. CrO3, py d. CrO3, H2SO4 e. Br2, NaOH, H₂O f. (C2Hs)₂CuLi, THF g. C₂HsLi, THF h. NaOH, H₂O i. NaOEt, EtOH j. Br2, CH3COOH k. DIBALH, THF, -78°C за to []wག་ཚི a OEt k b OH OH NH2praw the major organic product of the reaction shown below. OH + NaH • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Include cationic counter-ions, e.g., Nat in your answer, but draw them in their own sketcher.
- Complete the reaction scheme below with the missing structure and any other necessary reagents. You can ignore stereochemistry. Each box must be one synthetic step (i.e., one reaction), but some reactions are 2- or 3-part reactions (e.g., reactions that require a work-up step). A reaction that is one synthetic step, but includes multiple parts, should be shown with i), ii), and/or iii) in the same box. i) ii) H;O*Complete the reaction scheme below with the missing structure and any other necessary reagents. You can ignore stereochemistry. Each box must be one synthetic step (i.e., one reaction), but some reactions are 2- or 3-part reactions (e.g., reactions that require a work-up step). A reaction that is one synthetic step, but includes multiple parts, should be shown with i), ii), and/or iii) in the same box. ii) H;O* HOComplete the reaction scheme below with the missing structure and any other necessary reagents. You can ignore stereochemistry. Each box must be one synthetic step (i.e., one reaction), but some reactions are 2- or 3-part reactions (e.g., reactions that require a work-up step). A reaction that is one synthetic step, but includes multiple parts, should be shown with i), ii), and/or iii) in the same box. step 1 step 2 PBR3 (step 3) ii) H30* step 4 (step 5) HO. step 6