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- For each of the reactions pictured A) Give the Woodward-Hofmann classification. B) Use a frontier molecular orbital analysis to tell whether the reaction is an allowed thermal or photochemical concerted reaction. Ph. .. Ph a) Ph Ph CN CN CN b) CN H,CO,C Co,CH3 c) H3CO2C Co,CH3 H. d) CH3 H3C. CH2OSI(CH3)3 Os((CH3)3 H3C H,CH3C H8. Predict the product for the following reaction. NH₂ 1. excess CH₂l whom | A. I B. II 2. Ag₂O, H₂O heat || C. III D. IV N(CH3)2 E. V IV OH NHCH3Which are optimum conditions for an SN2 reaction? I, II I,IV III, IV II, III
- 1. Draw the structure of the major products of the following reactions -OH (1) DMSO, (COCI)2 (2) EtgN A. H,CrO, В. (1) KMNO,, HO", A OH (2) H,O* С.What is(are) the major product(s) of the following reaction? 1. ВНз, THF . ............. 2. NaOH, H202 OH HO OH OH II HO II IV Select one: O II, II O II, IV O II, V O IV, V2. What is a key intermediate in the following reaction? -Br HBr Peroxides
- Which of the following compound/s are correct in the given statements? 1.What compound/s will be able to get the change in the color of AlCl3 Crystal? If tert-butyl chloride is added in AlCl3. 2. Which compound will react in water under under light conditions with Br2? 3. Which compound will react in Kl under under dark conditions with I2?HBr AIBN, light Br Br OH OH U There is no reaction under these conditions or the correct product is not listed here.What are the reagents used in Group 3 that will separate each of the following pairs? a. CoS, ZnS b. Fe3+, Al3+ NaOHc. Zn(NH3)2+, CrO42-d. Al3+, Zn2+
- 5. Provide structures for A and B. Explain your choices using the appropriate molecular orbital diagrams (show all MO diagrams for the dien and dienophile) for reactions under thermal-vs-photochemical conditions. Show relative stereochemistry in the products. NC NO₂ hv B H₂C CH, A A13. What is the product of the following reaction? ROOR HBr Br a. Br b. Br с. Br d.What is true for this reaction? CI4(1) + 4 HCI(g) CH4(g)+ 4 Cl2{g) AHrxn 0 O AHrxn 0; ASrxn 0; ASrxn > 0