1. Cholesterol (A), Cholest-4,6-dienol (B), & Ergosterol (C), shown below in that order, are all steroidhormones that play critical roles in human physiology. Using your knowledge of alkene stability, rankwhich is the most stable, the least stable, and the one of middle stability leaving notes about your logic.HOH3C RH&C(A)HOHC RH3CHOH3C(C) lomadelaWhich steroid above (A, B, or C) do you expect to have the largest Amax value, and why?As your rationale, fill in the appropriate MO diagram below showing a HOMO→LUMO, oг л→л*transition that would symbolize the electronic excitation being measured via UV/Vis spectroscopy.-:8888 4-8888 43OR(2)SH--88.3169Hyvitam-lygosgesi-------non-bonding level:88882an (no way as Jodock dooJegse garen fo-&-usind-yomib-S sevilab biza -88-8888 41(at 21)-

Based on alkene stability, we know that the more substituted the alkene, the more stable it is.…

Answered: 1. Cholesterol (A), Cholest-4,6-dienol…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Consider the reaction of 1-methylcyclohexene with Br2 in CH3OH. Draw a curved arrow mechanism for Step 1 of this reaction, showing the formation of the intermediate(s), including stereochemistry. Show all intermediate structures for this step. First: Draw the curved arrow mechanism for step 1 in this reaction. Second: Draw the structure(s) of the intermediate(s) formed in step 1 of this reaction.
4. Which of the following are not likely products of the reaction below? CH₂ xa OH (A) (B) (C) (D) (E) CH3 H₂SO4 heat Both (B) and (D) Both (A) and (C) Both (C) and (E) Both (D) and (E) (A), (B), and (C) (A) (B) CH₁ (C) CH₂ (D) CH3 (E) CH3
Instructions: Determine the structures of compounds A to G, include stereochemistry where appropiate. Note: Present the structure you are referring to according to the letter and indicate the type of reaction that occurs.
Draw the structure(s) of the major organic product(s) of the following reaction. Ethanol / trace of HCI 0° C Use the wedge/hash bond tools to indicate stereochemistry where it exists. ⚫ If the reaction produces a racemic mixture, draw both stereoisomers.
please Includ rxn coordinate diagram
Draw a structural formula for the more stable carbocation intermediate formed in the reaction shown. o =CHCH₂CH3 + HI • You do not have to consider stereochemistry. • Do not include anionic counter-ions, e.g., I, in your answer. • For cases in which carbocations of the same or similar stability are expected, draw all of the structures. • Draw one structure per sketcher. Add additional sketchers using the drop- down menu in the bottom right corner. Separate structures with + signs from the drop-down menu.
Part A 1. Determine the absolute configuration (R or S) of the stereogenic centre in compounds (1) & (II) below. (i) HO H H₂C CH 3 Br H (II) HO 2. A compound may have a number of possible stereoisomers which is determined with the formula 2 (n = number of stereocentres). The compound (-)-menthone (below) is a Natural Product found in peppermint. Use the formula given to determine the number of possible stereoisomers in this compound can have. I CHO H CH₂CH3 CH(CH3)2
Kindly show all of the steps so I can learn how to solve these types of questions, and kindly box the final answers. Thank you
1) alkene (1 mole) 03 (1 mole) 2) (CH3)2S (1 mole) Scheme Q1a Products 1A and 1B? + (CH3)2S=O c) Assuming that in step 2 in the above reaction H2O2 (hydrogen peroxide) is used instead of (CH3)2S (dimethylsulfide), what would be the resulting products 1C and 1D? Draw their structure and circle and name the functional groups in the products.
Draw the structure(s) of the major organic product(s) of the following reaction. CH3 H3C. Dilute aqueous HCI • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • If the reaction produces a racemic mixture, draw both stereoisomers. • Include counter-ions, e.g., Na", I', in your submission, but draw them in their own separate sketcher. • Omit products derived from the acidic or basic reagent itself, e.g. HN(i-Pr)2 derived from N(i-Pr)2: • If substantial starting material is present at the end of the reaction, include it in the products. • If no reaction occurs, draw the organic starting material. P. opy aste ChemDoodle >
Fill in the following missing organic structures. Consider stereochemistry (R/S and/or E/Z –cis/trans) and possible carbocation rearrangements.
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