What are products of the following reactions?

b.

What are products of the following reactions?

c.

What are products of the following reactions?

d.

What are products of the following reactions?

e.

What are products of the following reactions?

f.

Which of the following bases can remove a proton from a terminal alkyne in a reaction that favors products?

Explain why an amide ion cannot be used to form a carbanion from an alkane in a reaction that favors products.

Any base whose conjugate acid has a pK_a greater than ______ can remove a proton from a terminal alkyne to form an acetylide ion (in a reaction that favors products).

Which carbocation is more stable?

a.

Which carbocation is more stable?

b.

How could the following compounds be synthesized from acetylene?

b.

How could the following compounds be synthesized from acetylene?

c. CH₃CH═CH₂

How could the following compounds be synthesized from acetylene?

d.

How could the following compounds be synthesized from acetylene?

e.

What is the major product obtained from the reaction of each of the following compounds with excess HCl?

c. CH₃CH₂C☰CCH₂CH₂CH₃

Draw a condensed structure for each of the following:

a. 2-hexyne

b. 5-ethyl-3-octyne

Draw a condensed structure for each of the following:

e. methoxyethyne

f. sec-butyl-tert-butylacetylene

Draw a condensed structure for each of the following:

g. 1-bromo-1-pentyne

h. 5-methyl-2-cyclohexenol

Draw a condensed structure for each of the following:

i. diethylacetylene

j. di-tert-butylacetylene

Draw a condensed structure for each of the following:

k. cyclopentylacetylene

l. 5,6-dimethyl-2-heptyne

A student was given the structural formulas of several compounds and was asked to give them systematic names. How many did she name correctly? Correct those that are misnamed.

a. 4-ethyl-2-pentyne

b. 1-bromo-4-heptyne

A student was given the structural formulas of several compounds and was asked to give them systematic names. How many did she name correctly? Correct those that are misnamed.

c. 2-methyl-3-hexyne d. 3-pentyne

Identify the electrophile and the nucleophile in each of the following reaction steps. Then draw curved arrows to illustrate the bond-making and ­bond-breaking processes.

a.

What is each compound's systematic name?

a.

What is each compound's systematic name?

b.

What is each compound's systematic name?

c.

What is each compound's systematic name?

d.

What is each compound's systematic name?

e.

f.

What reagents should be used to carry out the following syntheses?

What reagents should be used to carry out the following syntheses?