4. For each of the following reactions, draw the arrow-pushing mechanism that leads to the product shown. Use your knowledge of pKa's, nucleophiles, and electrophiles to determine if the reaction shown is likely to happen, and briefly explain your rationale. In the cases where the reaction drawn is not likely, draw the mechanism of the correct reaction. (30 pts) a) + Na + Br NH2 + CH3-1 + |¯ H H Na + Br OH + Br + NH₂ + OH CI + NaBr + + NaBr OH Br + HF + HCI NH
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- Chemistry I got lost on the step where nucleophilic attack takes place. If someone could show me the full process i would be greatful.Propose a mechanism for the conjugate addition of a nucleophile ( Nuc:" ) to acrylonitrile ( CH,=CHCN ). Use resonance forms to show how the cyano group activates the double bond for conjugate addition.A chemist in need of 2,2-dimethylpentanoic acid decided to synthesize some by reaction of 2-chloro-2-methylpentane with NaCN, followed by hydrolysis of the product. After the reaction sequence was carried out, however, none of the desired product could be found. What do you suppose went wrong?
- Yead. III. Show a complete synthesis of the following molecule starting with cyclohexane (as many times as you wish), any molecules of three (3) carbons or fewer, and any other reagents. (16 pts) Zoxo 5 Br BV-Br +Br HBV Br-Br Br Br Br Br Br HBV Br Br Brz ← ·Br Br BL Δ H G HO) TH F -OH он してDraw the structure(s) of the major organic product(s) obtained after workup of the following reaction. о + сн CH₂-C-Cl CH3 1. in benzene 2. aqueous HCI You do not have to consider stereochemistry. • . If no reaction occurs, draw the organic starting material. • • • Include the amine from which the enamine was derived. Include counter-ions, e.g., Na+, I, in your submission, but draw them in their own separate sketcher. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Θ CH3 CH3 CH3 ? ChemDoodle" removeWhich of the following statements is TRUE regarding the reaction below? Options: The IR spectrum of the major organic product will show a broad absorption between 3000-3500 cm-1. The mass spectrum of the major organic product will show an M+2 peak in the molecular ion region. The reaction should proceed without carbocation rearrangement. The alkene is the electrophile and water is the nucleophile in the first step. HSO4- is the dominant nucleophile in the second step.
- Consider the reaction: Draw out the two possible substitution reaction pathways (SN1 and SN2) and include all possible products. Include the structure of any intermediates and provide the curly arrow mechanisms required for both pathways. Using your answer to the above, justify which reaction pathway (SN1 or SN2) is more likely to occurEach of the three reactions below shows a Grignard reagent reacting with an unknown electrophile (1, 2 and 3) in the solvent diethyl ether to produce a product. All products are neutralized with HCl at the end of the reaction. Select the electrophiles from the list below that correspond to the reactions shown below: O Hold and drag to reorder (1) = i (2) = ii (3) = iv = v = vii = vi i он Me MgBr 1. Eto Me (1) 2. HС 1. Et.O (2) MaBr * 2. HCI он MgBr 1. Et0 2 equiv. (3) 2. HCI List of electrophiles: NaOD OMe но. vii)You run the following reaction. Upon completion and isolation of the product you take the following carbon NMR. Which of the following products did you make? A) ОН О B) H. ole C) ОН D) I II 128 200 150 100 50 б (ppm)
- 3. For each of the following reactions, draw the arrow-pushing mechanism that leads to the product shown. Use your knowledge of pKa's to determine if the reaction shown is likely to happen, and briefly explain your rationale. In the cases where the reaction drawn is not likely, draw the mechanism of the correct reaction. OH a) + НО- + НО-Н O- Lit b) HO CH2 Lit c) O- Lit Li* d) NH2 Br N. + HBr HO HO e) Br CH3O-Na* + NaBrWould the products for the reaction below both contain a carboxilic acid or one a carboxilic acid and the other an aldehyde?Please send me the question in 30 minutes it's very urgent plz find