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Chapter 10: Q.28. (page 414)

Question: What alkene can be used to prepare each alcohol as the exclusive product of a two-step hydroboration鈥搊xidation sequence?

Short Answer

Expert verified

Answer

a.

Step by step solution

01

Step 1:Hydroboration-oxidation reaction

The reaction involves the syn addition of BH3 to the double bond followed by oxidation to produce R and S alcohols.

02

Formation of products for a, b and c

a.

The alkene used to produce 2-methylcyclopentanol in the hydroboration-oxidation reaction is shown below:

Alkene in a

b.

The alkenes used to produce 4-methylheptan-3-ol in the hydroboration-oxidation reaction are shown below:

Alkene in b

c.

The alkene used to produce 1-cyclohexylethanol in the hydroboration-oxidation reaction is shown below:

Alkene in c

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Most popular questions from this chapter

Question: (a) Label the carbon鈥揷arbon double bond in A as E or Z. (b) Draw the products (including stereoisomers) formed when A is treated with H2O in the presence of H2SO4.

Question: Label the alkene in each drug as E or Z. Enclomiphene is one component of the fertility drug Clomid. Tamoxifen is an anticancer drug. Clavulanic acid is sold in combination with the antibiotic amoxicillin under the trade name Augmentin.

a

b.

c.

Question: (a) Draw the structure of (1E,4R)-1,4-dimethylcyclodecene. (b) Draw the enantiomer and name it, including its E,Z and R,S prefixes. (c) Draw two diastereomers and name them, including the E,Z and R,S prefixes.

Question: What alkylborane is formed from hydroboration of each alkene?

Question: Which alcohols can be prepared as a single product by hydroboration鈥搊xidation of an alkene? Which alcohols can be prepared as a single product by the acid-catalyzed addition of H2O to an alkene?

a.

b.

c.

d.
See all solutions

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