Ch 9/10 Q's

Question 1

[Notes] Synthesize 2,3-methyloxirane

Answer 1

Question 2

Transformation #3

Answer 2

See T 3)

Question 3

Conversion Ch 10 #2 top

Answer 3

see Ch 10 #2

Question 4

Comparisons 2) b

Answer 4

See Comparisons 2) b

Question 5

Transformation #5

Answer 5

See T 5)

Question 6

Better Nuc: Cl^- or Br^- in H₂O ?

Answer 6

protic solvent (H₂O)

Br^- more polarizable

Question 7

Comparisons 3) b

Answer 7

See comparisons 3) b

Question 8

[Ch 9 #5 2)]

Answer 8

[Ch 9 #5 2)]

Question 9

[Notes] Synthesize this: (CH₃)₂CH-O-CH₃

Answer 9

Question 10

Better Nucleophile: PH₃ or NH₃ in ROH

Answer 10

PH₃ bc “fatter molecule’ (less solvated by protic solution)

Question 11

Comparisons 3) a

Answer 11

See Comparisons 3) a

Question 12

Comparisons 2) a

Answer 12

See Comparisons 2) a

Question 13

[Ch 9 #5 3)]

Answer 13

[Ch 9 #5 3)]

Question 14

[Notes] Dehydration of (image):

Answer 14

Question 15

Transformation #6

Answer 15

See T 6)

Question 16

Better Nucleophile: CH₃SH or C₃HS^-

Answer 16

C₃HS^- bc anion

Question 17

Transformation #4

Answer 17

See T 4)

Question 18

Transformation #2

Answer 18

See T 2)

Question 19

[Ch 9 #5 4)]

Answer 19

[Ch 9 #5 4)]

Question 20

Transformation #1

Answer 20

See T 1)

Question 21

Better Nuc: Cl^- or Br^- in acetone ?

Answer 21

Cl^- because acetone aprotic

HCl weaker acid than HBr

therefore, Cl^- stronger Base