Preview

Hydroboration Reaction Lab Report

Satisfactory Essays
Open Document
Open Document
179 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Hydroboration Reaction Lab Report
The Hydroboration Reaction, also known as the Hydroboration-Oxidation Reaction, involves two reactions that are then used to create a final alcohol product. In this reaction, there are a couple of rules that must be remembered:
1. When adding the borane (BH3/THF) through an addition reaction, the BH¬2 will attach to the least substituted carbon atom. This often known as being an anti-Markovnikov formation.
2. Because the reaction occurs all at once (concerted), the H and BH2 will be added to the same side of the molecule. This is known as syn addition.
3. In the last step of the reaction, hydrogen peroxide with a hydroxyl group is then added to replace the BH¬2¬ with OH. This substitution doesn’t change the stereochemistry, as the OH ends

You May Also Find These Documents Helpful

  • Satisfactory Essays

    Mechanism 4 shows the debromination of 2α-bromocholestan-3-one to give 4. This mechanism which is similar to a Favoskii rearrangement, is likely to go via this path as other research has shown that there is often a by-product with this reaction. The by-product is cholest-4-en-3-one which requires the intermediate seen in the third molecule in the above mechanism. The intermediate is highly strained and with the presence of base a proton will be extracted which aids the collapse of the three membered ring. To gain the major product, 4, the H1 proton is removed, however it is very possible that the H4 proton is removed instead which would leave the minor product of cholest-4-en-3-one. Both products result in conjugation which will stabilise the molecule. The mechanism for this step is unlikely to go via a simple elimination as for an elimination the eliminated products must be trans to each other for facile leaving. As the bromine is equatorial in both the chair and the boat conformation the bromine is trans with neither of the hydrogens which shows this type of elimination is unlikely to occur. The other possibility is that the acidic hydrogen that is removed in the first step is not H4, but H2. This…

    • 372 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Nt1310 Unit 2 Study Guide

    • 2727 Words
    • 11 Pages

    |Annealing |The term used to describe hydrogen-bond formation between complementary base pairs when sections of |…

    • 2727 Words
    • 11 Pages
    Satisfactory Essays
  • Satisfactory Essays

    H2 Unit 3 Lab Report

    • 293 Words
    • 2 Pages

    4. Calculate the # of atoms of Magnesium that were involved in the reaction – use Avagadro’s number – remember units!…

    • 293 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    This reaction occurs when a hydrogen atom is replaced by a different functional group. In this reaction in shows that methanol is reacting with sodium and forms a sodium methoxide and a hydrogen because the functional group is replaced by another functional group.…

    • 1237 Words
    • 5 Pages
    Good Essays
  • Better Essays

    chem lab report

    • 1425 Words
    • 7 Pages

    2. To determine the densities of water, an unknown liquid, a rubber stopper, and an unknown rectangular solid.…

    • 1425 Words
    • 7 Pages
    Better Essays
  • Satisfactory Essays

    Answer - a - the replacement of the hydroxyl of a carboxyl group with hydrogen.…

    • 1085 Words
    • 5 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Blue Hydrate Lab Report

    • 153 Words
    • 1 Page

    Conclusion: The purpose of this lab was to visually see the chemical change that was taking place when hydrates gain and lose water.The formula for blue hydrate is anhydrous copper (ii) sulfate (CuSO4). The percent error for the mass of water is -94.40%. The effect of the hydrate not being heated long enough would result in water still being in the hydrate. If the test tube was not dried completely prior to the initial measurement it would cause the data to follow that incorrect measurement to be false and it would also add more water into the hydrate than what was initially projected. If the anhydride was allowed to sit over before the final mass measurement was taken it would result in more water loss from the hydrate. The moles of CuSO4…

    • 153 Words
    • 1 Page
    Satisfactory Essays
  • Good Essays

    Based on the data collected throughout the lab the dominant mechanism for this reaction was through the formation of the bromonium ion forming the erythro enantiomer.…

    • 751 Words
    • 4 Pages
    Good Essays
  • Powerful Essays

    Chem Lab Report

    • 1164 Words
    • 5 Pages

    .2400 grams of the unknown compound. This is done in duplicate and purple-tinted precipitates are placed in Gooch crucibles. The precipitates are suction dried using ethyl alcohol then acetone to…

    • 1164 Words
    • 5 Pages
    Powerful Essays
  • Good Essays

    is added it drives the reaction to the reactant side. More nitric acid is produced, which is not a…

    • 768 Words
    • 3 Pages
    Good Essays
  • Satisfactory Essays

    Test 4, Ch 9,10,11

    • 1029 Words
    • 5 Pages

    What is the major organic product obtained from the following reaction? O H 1 - BH3 2 - H2O2, NaOH O H OH…

    • 1029 Words
    • 5 Pages
    Satisfactory Essays
  • Good Essays

    3. Balance the following oxidation and reduction half – reactions for the decomposition of water.…

    • 810 Words
    • 3 Pages
    Good Essays
  • Good Essays

    H+ ions will join together at the cathode (the negative electrode) to produce H Atoms, and the H atoms will join to form molecules of H2 gas. At the positive electrode (the anode), H20 molecules will decompose to replace the H+ ions lost and release O2 gas. The reactions appear below.…

    • 730 Words
    • 3 Pages
    Good Essays
  • Good Essays

    This type of reaction is an oxidation-reduction (or redox) reaction. This reaction is also [anabolic/catabolic] and [endergonic/exergonic].…

    • 2158 Words
    • 9 Pages
    Good Essays
  • Good Essays

    Ap biology notes

    • 1204 Words
    • 5 Pages

    - On monomer provides a hydroxyl group (-OH), while the other provides a hydrogen (-H). This reaction is…

    • 1204 Words
    • 5 Pages
    Good Essays