Analyze the reaction sequence given below. excess Br Mg/ether 1. CO2 SOCI, CH;NH2 2. H3O Pyridine

What is the missing reactant in the following reaction? Select one: DA N OB. III O C. OD. II ? N&OC₂H₁ HOC₂H5 CHoli || & si "G OCH OCHS

NO ₂ Provide the product / reagants product 2 1. Fe, HCI 2. NUNO₂, HLI 3. Cu CN Na ₂ Cr 07 H ₂ O, H ₂ SO 4 1. NaN 3 2. H₂, Pt / reagants to complete the reaction sequences 2 2 OH ? ? 1. Ao 2. Socl₂, pyr. 2 2

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6. Complete the following reactions by filling what is left out; either the reactants, starting material, or the major product. a. b. C. CI 1. Excess NaNH, 2. H₂O 3.HgSO4 4. NaBH₁, NaOH 1.NAOMe 2.03 3. Zn, H* Coque

Rank from most to least reactive in an EAS reaction H 1. II. O=0 Br ||| A.IV>II>I> ||| B.II> IV> | > | C.II>IV>I> ||| D.I>>> IV IV

12. For each reaction below, the starting mass/volume of each reagent is provided as well as the final mass of product isolated. Calculate the theoretical and percent yield for each reaction. a. b. OH OH + l MW 122 1.50 g CI MW 141 d 1.21 g/mL 0.250 mL MW 60.1 7.40 g 1. PhMgBr MW 181 905 mg 2. HCI H3PO4 OH Ph MW 164 1.86 g Ph MW 260 547 mg + H₂O

3. PROVIDE FINAL PRODUCTS CI fo 1. 2. HBr LiCu 3. Mgº, Ether 4. CO2, then H3O+ 2