Question 1

Provide the IUPAC name for CH3C≡CC(CH3)2CH(CH2CH3)2.

Accepted Answer

5-ethyl-4,4-dimethyl...

Question 2

Provide the reagent(s) expected to accomplish the transformation shown below:

Accepted Answer

H₂, Ni₂B or ...

Question 3

Which of the following methods would be expected to efficiently produce cis-2-butene as the major organic product?

Accepted Answer

A)   CH3CHBrCH2CH3 + (CH3) 3COK/(CH3) 3COH
B)   CH3C≡CCH3 + H2, Pt
C)   CH3C≡CCH3 + H2, Ni2B (P-2) 
D)   CH3C≡CCH3 + Na, NH3(l) 
E)   CH3CHBrCH2CH3 + NaNH2

Question 4

Which of the bases below would quantitatively deprotonate a terminal alkyne?

Accepted Answer

A)   BuLi
B)   NH3
C)   NaOH
D)   NaOCH2CH3
E)   t-BuOK

Question 5

What is the IUPAC name for the molecule shown below?

Accepted Answer

A)   1,1-diethyl-2-pentyne
B)   3-(1-butynyl) pentane
C)   5-ethyl-3-octyne
D)   3-ethyl-4-heptyne
E)   5-ethyl-3-heptyne

Question 6

For the reaction shown, select the expected major organic product.

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   V

Question 7

Select the expected major product(s)  from the treatment of 1-pentyne with 1 equivalent of HBr in the presence of peroxides.

Accepted Answer

A)   2-bromo-1-pentene
B)   (
E)  -1-bromo-1-pentene
C)   (Z) -1-bromo-1-pentene
D)   A and B
E)   B and C

Question 8

For the reaction below, select the structure of the expected major organic product.

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   V

Question 9

Which of the following is a structure for hepta-3,6-dien-1-yne?

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   V

Question 10

Of the species listed below, select those less basic than acetylide.

Accepted Answer

A)   BuLi
B)   NaNH2
C)   NaOCH3
D)   both A and C
E)   both B and C

Question 11

Provide the IUPAC name for Cl3C(CH2) 4C≡CH.

Accepted Answer

A)   4,4,4-trichloro-1-butyne
B)   1,1,1-trichloro-6-heptyne
C)   1,1,1-trichloro-5-heptyne
D)   6,6,6-trichloro-1-hexyne
E)   7,7,7-trichloro-1-heptyne

Question 12

Provide the IUPAC name for CH3CH(CH3)C(CH3)2C≡CCH(CH3)2.

Accepted Answer

2,5,5,6-tetramethyl-...

Question 13

For the reaction shown, which of the compounds below would be the expected major, and final, organic product?

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   V

Question 14

For the transformation shown, select the most appropriate reagent(s)  to effect the change. 2SO4, HgSO4, H2O B)  1. Disiamylborane, 2. HO-, H2O2 C)  K2Cr2O7, H+ D)  NaOCl E)  H2, Pd" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)   H2SO4, HgSO4, H2O
B)   1. Disiamylborane, 2. HO-, H2O2
C)   K2Cr2O7, H+
D)   NaOCl
E)   H2, Pd

Question 15

For the reaction below, select the structure of the major organic product.

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   V

Question 16

Which of the compounds shown below would be the most likely product expected from the reaction scheme shown?

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   V

Question 17

What reagent(s) are required to prepare trans-2-heptene from 2-heptyne?

Accepted Answer

The answer of What reagent(s) are required to prepare trans-2-heptene...

Question 18

What is the expected major product of the reaction sequence shown below?

Accepted Answer

A)   I
B)   II
C)   III
D)   IV
E)   V

Question 19

Reaction of 3,4,5-trimethyl-4-hexen-1-yne with H2 and Pd/C will produce which of the following compounds?

Accepted Answer

A)   2,3,4-trimethylhexane
B)   3,4,5-trimethylhexane
C)   2,3,4-trimethyl-1-hexene
D)   3,4,5-trimethyl-1-hexyne
E)   2,3,4-trimethyl-5-hexyne2

Question 20

For the reaction shown below, the resulting stereochemistry of the expected product is best described as:

Accepted Answer

A)   only (S) 
B)   only (R) 
C)   racemic
D)   meso
E)   achiral

Exam 10: Alkynes

For the transformation shown, select the most appropriate reagent(s) to effect the change.

Correct AnswerverifiedShow Answer

Provide the reagent(s) expected to accomplish the transformation shown below:

Correct AnswerverifiedH2, Ni2B or ...View AnswerShow Answer

Which of the compounds shown below would be the most likely product expected from the reaction scheme shown?

Correct AnswerverifiedShow Answer

Which of the following is a structure for hepta-3,6-dien-1-yne?

Correct AnswerverifiedShow Answer

Select the expected major product(s) from the treatment of 1-pentyne with 1 equivalent of HBr in the presence of peroxides.

Correct AnswerverifiedShow Answer

Provide the IUPAC name for Cl3C(CH2) 4C≡CH.

Correct AnswerverifiedShow Answer

What is the expected major product of the reaction sequence shown below?

Correct AnswerverifiedShow Answer

For the reaction below, select the structure of the major organic product.

Correct AnswerverifiedShow Answer

What reagent(s) are required to prepare trans-2-heptene from 2-heptyne?

Correct AnswerverifiedShow Answer

Which of the following methods would be expected to efficiently produce cis-2-butene as the major organic product?

Correct AnswerverifiedShow Answer

For the reaction shown, select the expected major organic product.

Correct AnswerverifiedShow Answer

Provide the IUPAC name for CH3C≡CC(CH3)2CH(CH2CH3)2.

Correct Answerverified5-ethyl-4,4-dimethyl...View AnswerShow Answer

What is the IUPAC name for the molecule shown below?

Correct AnswerverifiedShow Answer

Provide the IUPAC name for CH3CH(CH3)C(CH3)2C≡CCH(CH3)2.

Correct Answerverified2,5,5,6-tetramethyl-...View AnswerShow Answer

For the reaction shown below, the resulting stereochemistry of the expected product is best described as:

Correct AnswerverifiedShow Answer

Which of the bases below would quantitatively deprotonate a terminal alkyne?

Correct AnswerverifiedShow Answer

Reaction of 3,4,5-trimethyl-4-hexen-1-yne with H2 and Pd/C will produce which of the following compounds?

Correct AnswerverifiedShow Answer

For the reaction below, select the structure of the expected major organic product.

Correct AnswerverifiedShow Answer

Of the species listed below, select those less basic than acetylide.

Correct AnswerverifiedShow Answer

For the reaction shown, which of the compounds below would be the expected major, and final, organic product?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified
H₂, Ni₂B or ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Provide the IUPAC name for Cl₃C(CH₂) ₄C≡CH.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Provide the IUPAC name for CH₃C≡CC(CH₃)₂CH(CH₂CH₃)₂.

Correct Answer
verified
5-ethyl-4,4-dimethyl...
View Answer

Correct Answer
verified

Provide the IUPAC name for CH₃CH(CH₃)C(CH₃)₂C≡CCH(CH₃)₂.

Correct Answer
verified
2,5,5,6-tetramethyl-...
View Answer

Correct Answer
verified

Correct Answer
verified

Reaction of 3,4,5-trimethyl-4-hexen-1-yne with H₂and Pd/C will produce which of the following compounds?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified