Explain what happens to it after bromination of cholesterol

Assignment Help Chemistry
Reference no: EM13163359

7-cholesten-3 beta-ol +br2 +ch3cooh -> brominated cholesterol 1) (3pts) Give a stepwise mechanism for the bromination step. Why does acetate ion not attack the intermediate bromonium ion to give the 5-acetoxy-6-bromo compound in the bromination of cholesterol? [hint: which is the stronger nucleophile and why? Consult your lecture text.] 2) (2 pts) If 3?-cholestanol is an impurity in Cholesterol, why doesn't it also react with Br2? What happens to it after bromination of Cholesterol takes place? (ie- why is it that bromination allows you to separate it from cholesterol?) 3) Give a stepwise mechanism for the debromination step

Reference no: EM13163359

Questions Cloud

How do compute the product distribution calculations : How do I calculate the product distribution calculations of the three peaks? Or the product ratios? The first peak was at 0.600, second at 0.95. Those are the retention times
State the stereoselective wittig reaction : The procedure calls for the addition of 7-8 drops of aqueous NaOH. What is the purpose of the base here? Be specific and show the reaction that occurs
Explain what will be the mass of unreacted copper in the bar : When the reaction that occurs finally ceases, what will be the mass of unreacted copper in the bar? What will be the mass of silver metal that "plates out" of solution (that is, what mass of silver metal is produced by the reaction)
Calculate the net present value of the proposed change : Calculate the net present value of the proposed change, that is, the net benefit or net loss in present vaklue terms of the proposed changeover.
Explain what happens to it after bromination of cholesterol : What happens to it after bromination of Cholesterol takes place? (ie- why is it that bromination allows you to separate it from cholesterol?) 3) Give a stepwise mechanism for the debromination step
Describe the following trends in lattice energy : Explain the following trends in lattice energy. (Select all that apply.) (a) NaCl > RbBr > CsBr CsBr is smaller than RbBr and NaCl. NaCl is smaller than RbBr and CsBr
Gain realized on the sale of the assets : The gain realized on the sale of the assets and the balances in the partners-2019 capital accounts after the distribution of this gain or loss to the capital accounts.
Compute the ph at the equivalence point for titrating : Calculate the pH at the equivalence point for titrating 0.250 solutions of each of the following bases with 0.250 M HBr
Computing the percent ionization of acid in a buffer : What are the steps to follow when calculating the percent ionization of acid in a buffer solution. example) percent ionization of .20 M benzoic acid in pure water and percent ionization of benzoic acid in a solution containing

Reviews

Write a Review

Chemistry Questions & Answers

  Steps in the mechanism for the following reaction

Show all the steps in the mechanism for the following reaction, When benzene is mixed with deuterated sulfuric acid, deuterium is slowly incorporated onto the ring. Show the mechanism for this reaction and explain how this relates the sulfonation of ..

  Prior to placing piece of metal into the graduated cylinder

This assignment inhibits chemistry Laboratory Questions.

  Write the structures of the saytzeff elimination

Write the structures of the saytzeff elimination

  Calculate ph - chemistry questions

Chemistry Questions on Calculate P H

  How many mols of hydrogen can produce

how many mols of H 2 can produce

  Analysis of corrosion mechanisms

Analysis of corrosion mechanisms and preventative measures

  Chemical and pharmaceutical science

Write an equation for the formation of an acetal from reaction of excess methanol with benzaldehyde in the presence of an acid catalyst.

  Calculate the approximate sulphur

Calculate the approximate SO 2 mass emission in lb/day.

  What is the structure - stereochemistry

What is the structure (including functional groups)? Stereochemistry (racemic or single enantiomer)?

  Design a qualitative analysis scheme

Design a qualitative analysis scheme

  What will be the resultant pressure

What will be the resultant pressure when the stopcock is opened?

  The 1h nmr spectrum

Integrals for some of the resonances in the 1H NMR spectrum are higher than they should be due to the shear number of hydrogens in this compound

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd