chp 13 reagents

Question 1

alkyne to alkane

Answer 1

H2, Pd

Question 2

alkyne to cis alkene (syn addition)

Answer 2

H2, Lindlard catalysts (Pd, CaCO3)

Question 3

alkyne to trans alkene (anti addition)

Answer 3

Na,NH3

Question 4

maokovnikov addition of halogen from alkyne to alkene (for terminal alkyne)

Answer 4

HBr (1eq)

Question 5

maokovnikov addition of halogen from alkyne to alkane

for terminal alkyne

Answer 5

HBr excess

Question 6

maokovnikov hydration of an alkyne to a ketone (c=o)

Answer 6

H20
H2so4
HgSO4

Question 7

antimarkovnikov alkyne to ketone (c=o)

Answer 7

1) BH3, THF

2) H202, OH-

Question 8

alkyne to 2 carboxylic acids (O=C-OH)

Answer 8

needs internal alkene

1) O3
2) H20

Question 9

alkyne to carboxylic acid plus Co2

Answer 9

needs terminal alkene

1) O3
2) H20

Question 10

alkyne to alkene with two halogens (anti addition)

internal alkyne

Answer 10

Br2(1 equiv), Ccl4

Question 11

alkyne to alkane with 4 halogens

internal alkyne

Answer 11

Br2 (excess), CCl4

Question 12

synthesis of alkane to internal alkyne

Answer 12

2NaNH2

NH3

Question 13

synthesis of alkane to external alkyne

Answer 13

3NaNH2

NH3

Question 14

addition of Mg to alkene with halogen

Answer 14

Mg, THF

Question 15

combination of two alkenes

Answer 15

Ni/Pd

-HCl