Questions from Organic Chemistry

Q: Compound X is treated with Br2 to yield meso-2,

Compound X is treated with Br2 to yield meso-2,3-dibromobutane. What is the structure of compound X?

Q: Identify the alkene that would yield the following products via ozonolysis:

Identify the alkene that would yield the following products via ozonolysis:

Q: The following reaction is observed to be regioselective. Draw a mechanism

The following reaction is observed to be regioselective. Draw a mechanism for the reaction and explain the source of regioselectivity in this case:

Q: Identify the reagents you would use to accomplish each of the following

Identify the reagents you would use to accomplish each of the following transformations:

Q: Identify the reagents you would use to accomplish each of the following

Identify the reagents you would use to accomplish each of the following transformations:

Q: Identify which of the following two reactions you would expect to occur

Identify which of the following two reactions you would expect to occur more rapidly: 1. addition of HBr to 2-methyl-2-pentene or 2. addition of HBr to 4-methyl-1-pentene. Explain your choice.

Q: Predict the major product(s) of the following reaction:

Predict the major product(s) of the following reaction:

Q: Compound A has the molecular formula C5H10. Hydroborationoxidation of compound A

Compound A has the molecular formula C5H10. Hydroborationoxidation of compound A produces an alcohol with no chiral centers. Draw two possible structures for compound A.

Q: Below are NMR spectra of several compounds. Identify whether these compounds

Below are NMR spectra of several compounds. Identify whether these compounds are likely to contain ethyl, isopropyl, and/or tert-butyl groups:

Q: In much the same way that they react with H2, alkenes

In much the same way that they react with H2, alkenes also react with D2 (deuterium is an isotope of hydrogen). Use this information to predict the product(s) of the following reaction: