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) ii) 2 eq. E 2 eq. O H₂/Lindlar's catalyst Br₂/CH₂Cl₂ San NaH H₂O+/H₂O H H₂/ Lindlar's catalyst PCC/CH₂Cl₂ NaH Sa H3O+/H₂O CH₂Br
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- (1) MeO₂C CO₂Me (ii) (iii) H H₂C 1. Reagents 2. Reaction Conditions 3. Mechanism 1. Reagents 2. Reaction Conditions 3. Mechanism 1. Reagents 2. Reaction Conditions 3. Mechanism H₂C CH3 O OH OH Afla H₂C OMeIn each reaction box, place the best reagent and conditions from the list provided. 1) Br 2) 3) 4) DEET (the active ingredient in over the counter insect repellant) 5) Answer Bank Mg, Et,0 HN(CH, CH, ), (1 equiv.) H,O* CH,COOH CH,CH,NH, CH,CH, Br NH(CH,CH,),(2 cquiv.) НСООСH, H,CO НСООН CH, CH, OH NaCN NaNH, Br,, FeBr, SOCI, CO,The following reaction can be carried out in two steps. Choose the correct reagents i) and ii) to perform the following reaction. CN Oi) H₂O, acid catalyst; ii) CN Oi) HBr; ii) CNT Oi) CN; ii) H₂O, acid catalyst i) CN; ii) heat i) Br₂; ii) CN .
- The Zeisel method is an old analytical procedure for determining the number of methoxyl groups in a compound. A weighed amount of the compound is heated with concentrated HI, ether cleavage occurs, and the iodomethane product is distilled off and passed into an alcohol solution of AgNO3, where it reacts to form a precipitate of silver iodide. The Agl is then collected and weighed, and the percentage of methoxyl groups in the sample is thereby determined. For example, 1.06 g of vanillin, the material responsible for the characteristic odor of vanilla, yields 1.60 g of Agl. If vanillin has a molecular weight of 152, how many methoxyl groups does it contain?More than one reagent/reaction will be necessary to produce the product from the reactant provided. You must provide all necessary reaction conditions (HBr, HgSO4, etc.) and the products produced after each step of the synthesis.Consider the reaction scheme below. (i) H3COCHN CO₂Et A H₂N OH EtO OEt B C6H₁1 NO2 base Ha Identify the reagent(s) and conditions A and the intermediate B in this reaction scheme.
- H2N. 1)? 2)? 3)? Choose the correct reagents from the following list: A D CH;CL, AICI, Zn, HCI CH,COCL AICI, Zn(Hg), HCI, heat H. Bry AIBry KMnO NaOH, heat HNO, H,SO. H,O Enter the correct letter for each step of the reaction in the boxes below. (Reagents cannot be used more than once)In the following given reaction choose the two correct starting material from (a) -(m)Which reagents would you use to obtain the product? OH ? O 1. B2H6. THF 2. H2O2, NaOH, H2O O 1. Hg(OAc)2, H₂O/THF 2. NaBH4, ethanol OH₂O, H₂SO4 OHBr (excess) OH₂O, NaOH