10. Addition Reactions

Predict the product(s) that would result when the alkenes are allowed to react under the following conditions: (vi) 1. OsO₄ 2. NaHSO₃

(k)

At the beginning of Chapter 9, we stated that after finishing Chapters 8 and 9, we would have the ability to make a large variety of functional groups using related reactions. Show the reagent(s) necessary to convert 1-isobutylcyclohexene into the following molecules.

(b)

At the beginning of Chapter 9, we stated that after finishing Chapters 8 and 9, we would have the ability to make a large variety of functional groups using related reactions. Show the reagent(s) necessary to convert 1-isobutylcyclohexene into the following molecules.

(d)

The concertedness of the OsO₄ reaction results in both oxygens being added to the same face of the molecule (i.e., syn addition). How might these conditions be modified in order to prepare a trans-diol?

Predict the product(s) of each of the following reactions, making sure to indicate the relative stereochemical outcome. Indicate any racemic mixtures by drawing both enantiomers.

(b)

When using a terminal alkene under the conditions shown here, explain why it is unnecessary to show the relative stereochemical outcome in the product.

Which of molecules A–D would you expect to give a positive permanganate test? That is, which would result in a purple KMnO₄ solution turning brown?

(d)

Predict the product(s) that would result when the alkenes are allowed to react under the following conditions: (v) mCPBA; (vi) 1. OsO₄ 2. NaHSO₃.

(e)

Draw the organic products you would expect to isolate from the following reactions (after hydrolysis).

(n)

Predict the product(s) that would result when the following molecules are allowed to react under the following conditions: (iv) 1. OsO₄ 2. NaHSO₃. If there is no reaction, write 'no reaction.'

(a)

Suggest a reagent and a reactant that could be combined to make each of the following alcohols.

(b)

Predict the product of each of the following alcohol synthesis reactions.

(d)

We have studied a number of pericyclic reactions previously. Draw the mechanism of the steps shown. The section number where this material was first studied is given for your review.

(d)

Draw the structure of and name the enantiomeric diols that result from the cis-dihydroxylation of the alkene shown.

Predict the product(s) that would result when the alkenes are allowed to react under the following conditions: (v) mCPBA; (vi) 1. OsO₄ 2. NaHSO₃ 

(l)