Orbital configuration of carbocation (figure 6.3 tButyl cation)energy diagram of a reaction, function of catalyst; intermediates, (enthalpy, activation energy)Markovnikov regioselectivityAnti-/syn-addition

Step 1:A carbocation (carbonium ion) is an organic ion where a carbon atom has a positive charge due…

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Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter18: Aromaticity

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Electron pairs CH3 .. Erase H3C - С — СІ: H3C – S- CH3 CH3 CH, CH3 THF/H,0 + H,C--CH, CH C- CH CHs CH, Use curved arrows to write the first step of this nucleophilic substitution mechanism. :ö: | :ö:
ENVVIEW top [References] Draw the structure(s) of the major organic product(s) of the following reaction. Ag,0 / aqueous THF,0° • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Do not include lone pairs in your answer. They will not be considered in the grading. If no reaction occurs, draw the organic starting material. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate multiple products using the + sign from the drop-down menu. . .
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Is the reaction stereoselective? Does the reaction of bromine with trans-cinnamic acid involve syn-addition, anti-addition, or both? Explain your reasoning.
Identify the major product of the reaction of an alkene shown below. ||| 1. Hg(OAc)2, H2O 2. NaBH4, NaOH ....... ОН || IV ОН о, ОН
11. (24 pts) (a) Similar to alkanes, hydrogen gas can undergo radical bromination according to the reaction below. Propose a chain-reaction mechanism for this reaction, including an initiation step, propagation steps, and two plausible termination steps. The homolytic bond dissociation energy for Br-Br is 46 kcal mole-, for H-Br is 88 kcal mole and for H-H is 104 kcal mole. hv Н-Н + Вr-Br 2 Н-Br (b) Calculate the overall AH for the above propagation steps (show all work).
Select the appropriate synthetic route to convert methylcyclobutane into cyclopentene. ?? 1 1. KOtBu; 2. BH3-THF; 3. H₂O2, NaOH; 4: H₂SO4, heat 1. H₂, Lindlar's catalyst; 2. BH3-THF; 3. H₂O2, NaOH 1. Br₂, hv; 2. KOtBu; 3. BH3-THF; 4. H₂O2, NaOH; 5: H₂SO4, heat 1.BH3-THF; 2. H₂O2, NaOH; 3. H₂, Pt 1. Br₂, hv; 2. KOtBu; 3. H₂O₂, NaOH; 4: H₂SO4, heat
a) Consider the reaction of HBr with ethylene and propylene. At roomtemperature the reaction of propylene with HBr is much faster than thereaction with ethylene.Using reaction energy diagrams and your knowledge of carbocationstability explain why this is so. b) Xylene (dimethylbenzene) is a commonly used chemical in the printingindustry and as a cleaning solvent for oily waste. It is also used whenpreparing histological samples to remove waxes from biological samples.Draw the three possible structures for this compound and give the UPACnames for each. Define which structures are ortho, meta, and para.
What would be the effect on the rate of reaction if the concentration of the nucleophile weredoubled in an…a. SN1 reaction? Briefly explain.b. SN2 reaction? Briefly explain.
Please no abbreviations
Ff.47.

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Orbital configuration of carbocation (figure 6.3 tButyl cation) energy diagram of a reaction, function of catalyst; intermediates, (enthalpy, activation energy) Markovnikov regioselectivity Anti-/syn-addition