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- Instructions. Briefly describe the following given reactions. 2. The conversion of benzaldehyde into benzophenone. HNO, SOCL, (Oxidation) Benzaldehyde (Friedel-Craft acylation) Anhyd. AICI, Benzophenone AN SWERS: Desk1. a) contd. then write the intermediates for steps i-iii (no need for mechanisms, ATQ) b) What are the intermediate products & the final product of this synthetic sequence? Benzene Br₂ FeCl3 Mg ether 1. C6H5CHO 2. H3O+ H₂Cr₂O4 acetone3. Provide the major organic product of the following reaction. H₂NNH₂, H (cat.)
- e. Reactions: Provide the structure(s) of the expected major organic product(s). Show stereochemistry where needed and write NR if there is no reaction. d. C. a. b. H Br H CH3 Br 1. MCPBA, CH₂Cl₂ 2. H*, CH₂OH 1. t-BuOK, t-BuOH 2. Br₂, CCl4 NaOCH3, CH₂OH 1. 03, CH₂Cl₂ 2. (CH3)2S 1. BH3, THF 2. H₂O₂, NaOHQ4. Nucleophilic attack at carbonyl with loss of carbonyl oxygen. For this question, answer AT LEAST FIVE of the SIX parts. (a) For the FOUR reactions listed below, draw structures of the major organic products. (i) (ii) (iii) HO OH ●... NMe₂NH₂ cat. dry HCI H Ph₂pⓇ THFKindly answer the following questions below. You may use illustration to help explain your answer a. Illustrate and explain the difference between Markovnikov and Anti-Markovnikov addition of HBr to alkene. b. Explain why catalytic hydrogenation of alkene proceeds via syn addition c. Explain, using resonance structures, why an OH group of phenol is an ortho/para director.
- NH₂ NHỊCH, tipy (a) acrylamide Diamines are used as the building blocks for the synthesis of pharmaceuticals and agrochemicals. In the above synthesis, draw the structure of the product (b). ChemDoodle 1. LIAIH 2. H₂O • 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. OF (b) 6In not less than 5 sentences, provide a non- textbook explanation/description of the following organic chem principles AND include considerations such as substrates, reagents, and regiochemical/stereochemical considerations. 1. organic reduction reaction 2. organic oxidation reaction 3. Electrocyclic reaction 4. Cycloaddition reactionsWhich is the major isolated organic product of this reaction sequence? C B C₂H₂ C3H₂ 1. NaNH, 2. CHI;Br 3. Lindlar's cat., [₂ 4. mcpba (B) C₂H₂ (D) C3H7¹
- 2. Isomerization of alkenes can be achieved through conjugate addition of nucleophiles. Examine the reaction below and answer the questions that follow: i) ii) iv) bigg Starting Alkene Alkene Product Give the chemical structure of the Alkene Product that is formed (NB: Show and label the geometry of the Alkene Product). Explain why geometry given in i) above is preferred. What is likely to be the geometry of the Starting Alkene? Give the full mechanism through which the isomerization is likely to occur.3. Provide mechanisms to explain the following reactions. H₂O NaOH H₂O H3O+ a. b. C. ""*** 1-iodobutane H3O* H₂O O based on you mechanistic insight, predict which enantiomer of the product forms C4Hg17. Provide the major organic product of the following reaction. ...O NaOCH3 CH3OH