Exam 3 Sebahar

Question 1

Reduction of an Alkyne to a Trans Alkene

Answer 1

Na in NH3

Question 2

Alkyl halides (Alkenes and Alkynes) can be reduced to Alkanes using what?

Answer 2

LiAlH4

Question 3

Epoxide rings can be opened with what to form alcohols?

Answer 3

LiAlH4 and H2O

Question 4

Where does the unsymmetrical epoxide usually break?

Answer 4

On the less substituted side

Question 5

H2, Pd/C

Answer 5

Reduction. Syn addition

Question 6

Lindlar’s Catalyst

Answer 6

Reduction. Adding Hydrogen to an Alkyne to make it a cis Alkene

Question 7

Na in NH3

Answer 7

Reduction. Adding hydrogen to an Alkyne making it a Trans Alkene

Question 8

LiAlH4

Answer 8

Reduction. Alkyl halide reduced to Alkane, epoxide ring opened and converted to an alcohol

Question 9

Peroxyacid like mCPBA

Answer 9

Oxidation. Formation of an Epoxide

Question 10

Reagents that contain metal-oxygen bonds (OsO4, KMnO4, CrO3, PCC)

Answer 10

Oxidation

Question 11

SMe2

Answer 11

Ozonolysis

Question 12

Zn

Answer 12

Ozonolysis

Question 13

Acid catalyzed reaction (H2SO4)

Answer 13

Hydration

Question 14

HgSO4

Answer 14

Hydration. The addition of H2O to an Alkene or Alkyne

Question 15

Reduction of an Alkyne to a cis Alkene

Answer 15

Lindlar’s Catalyst: Pd on CaCO3 + Pb(OCOCH3) + quinolone

Question 16

Alkene + mCPBA

Answer 16

Epoxide

Question 17

Primary alcohol + PCC

Answer 17

RHC=O (Aldehyde/Carboxylic Acid)

Question 18

Secondary Alcohol + CrO3

Answer 18

Ketone R2C=O