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- In the experiment where an Electrophillic aromatic substitution sulfonation reaction is conducted on Indigo to produce the food dye FD&C Blue #2(indigo blue or indigotine). show a mechanism showing a single sulfonation on a molecule of indigo.For problem 8.17, all of the reactions will be SN2. For each reaction, identify and evaluate each nucleophile (strong? weak? Strong or weak as a base?) Also, evaluate each solvent as polar protic or polar aprotic. I recommend drawing the structure of each solvent. (d) Sodium cyanide in dimethyl sulfoxide (e) Sodium azide in aqueous ethanol (f) Sodium hydrogen sulfide in ethanolThe base-promoted rearrangement of an a-haloketone to a carboxylic acid, known as the Favorskii rearrangement, is illustrated by the conversion of 2-chlorocyclohexanone to cyclopentanecarboxylic acid. Jo Han Sow La NaOH, THF O Nat H3O+ OH NaOH, THF The mechanism involves the following 5 steps: -ō cyclopropanone intermediate 1. Abstraction of a proton to form enolate anion 1; 2. Formation of a cyclopropanone intermediate 2 with expulsion of chloride ion; 3. Addition of hydroxide ion to form tetrahedral intermediate 3; 4. Collapse of the tetrahedral intermediate and breakage of the three-membered ring to form carbanion intermediate 4; 5. Proton transfer to form the rearranged carboxylic acid. For the following reaction, draw the reaction out on paper, and then draw the structure of cyclopropanone intermediate 2 in the window. 1. NaOH, THF 2. H3O* OH
- The following reaction has a ΔSsystem < 0 O2(g) → 2O(g) T or F can you explain why this is false?For problem 8.17, all of the reactions will be SN2. For each reaction, identify and evaluate each nucleophile (strong? weak? Strong or weak as a base?) Also, evaluate each solvent as polar protic or polar aprotic. I recommend drawing the structure of each solvent. (g) Sodium methanethiolate (NaSCH3) in ethanolDraw reaction mechanism for week 2 A wittig reaction experiment: Week 1 -》 preparation of phosphonium salt Materials : triphenylphosphine (5.3g),methyl Bromoacetate 3.36g (2.1ml) , ethanol 30ml . The yield obtained was 8.93g .The percentage yield was 106.4% Week 2 -》 Formation of the ylide and wittig reaction Materials :Phosphonium salt (5g), napthyl-2- carboxaldehyde( 2.65g), 20 ml of water and 5 nl of Nahco3. Yield obtained was 0.51g . The percentage yield was 14.2%. Week 3: Solvent free wittig reaction Materials: Benzyltriphenylphosphonium chloride (0.5g ), 4 - Bromoabenzaldehyde (0.24g), Potassium phosphate (tribasi c) 0.275g .The yield obtained was 1.21g. The percentage yield was 35.6%.
- Scheme 1: Reagents: (a) acetic anhydride, sulfamic acid, 60°C,30min,91%; (b) Et3SiH,I2,0-5°C,30min,82%. 1) Draw the FULL, ARROW-PUSHING MECHANISM 2) Provide a verbalization of the mechanism for your reaction mechanism 3) What is happening at each step? What atom is nucleophilic? Which atom is electrophilic? Which bonds are made? Which bonds are broken? 4) Imagine you are trying to describe the reaction mechanism and I can't see your display - how would you describe the mechanism in a way that I know, that you know, what you are talking about.dedcue the major organic product from the following reations. be ablw to draw hydration halogenation hydrohalogenation, halohydrin formation, oxymercuratiom demercuration qnd hydroboration oxidation.Predict the reaction of methyl 3-oxocyclohexane-1-carboxylate with NaBH4/ h20 show the mechanism
- When the rate constants for the hydrolysis of several morpholine enamines of para-substituted propiophenones are determined at pH 4.7, the r value is positive; however, when the rates of hydrolysis are determined at pH 10.4, the r value is negative. a. What is the rate-determining step of the hydrolysis reaction when it is carried out in a basic solution? b. What is the rate-determining step of the hydrolysis reaction when it is carried out in an acidic solution?Predict the products of reaction of pent-1-yne with the following reagents. warm, concd. KMnO4, NaOHI. Propose a mechanism reaction for the reaction below. 2. Identify the major and the minor products.