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문제 20b
What are products of the following reactions?
b.
문제 20c
What are products of the following reactions?
c.
문제 20d
What are products of the following reactions?
d.
문제 20e
What are products of the following reactions?
e.
문제 20f
What are products of the following reactions?
f.
문제 21
Which of the following bases can remove a proton from a terminal alkyne in a reaction that favors products?
문제 22
Explain why an amide ion cannot be used to form a carbanion from an alkane in a reaction that favors products.
문제 23
Any base whose conjugate acid has a pKa greater than ______ can remove a proton from a terminal alkyne to form an acetylide ion (in a reaction that favors products).
문제 26a
Which carbocation is more stable?
a.
문제 26b
Which carbocation is more stable?
b.
문제 28b
How could the following compounds be synthesized from acetylene?
b.
문제 28c
How could the following compounds be synthesized from acetylene?
c. CH3CH═CH2
문제 28d
How could the following compounds be synthesized from acetylene?
d.
문제 28e
How could the following compounds be synthesized from acetylene?
e.
문제 29c
What is the major product obtained from the reaction of each of the following compounds with excess HCl?
c. CH3CH2C☰CCH2CH2CH3
문제 30a,b
Draw a condensed structure for each of the following:
a. 2-hexyne
b. 5-ethyl-3-octyne
문제 30e,f
Draw a condensed structure for each of the following:
e. methoxyethyne
f. sec-butyl-tert-butylacetylene
문제 30g,h
Draw a condensed structure for each of the following:
g. 1-bromo-1-pentyne
h. 5-methyl-2-cyclohexenol
문제 30i,j
Draw a condensed structure for each of the following:
i. diethylacetylene
j. di-tert-butylacetylene
문제 30k,l
Draw a condensed structure for each of the following:
k. cyclopentylacetylene
l. 5,6-dimethyl-2-heptyne
문제 31a,b
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
문제 31c
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
문제 32a
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.
문제 33a
What is each compound's systematic name?
a.
문제 33b
What is each compound's systematic name?
b.
문제 33c
What is each compound's systematic name?
c.
문제 33d
What is each compound's systematic name?
d.
문제 33e,f
What is each compound's systematic name?
e.
f.
문제 34a
What reagents should be used to carry out the following syntheses?
문제 34b,c
What reagents should be used to carry out the following syntheses?
