Advices For Studying Organic Chemistry

(Wang) #1
B B

B

H

R-Alpine-BoraneTM

B


H

9-BBN

O HO H

(S)-(−)Aline-Borane

97%enantiomeric excess

60-65% yield

CH 3

B
D O OH
H

R
R

C
H

D

(R)

CH 3

B
H O

OH

RS

RL

Ipc

Cl

RL

C
RS

H

(S)

favored

RS

C
RL

O H OH
CH 3

B
H
RL

RS

Ipc

Cl

(R)

less favored
Free download pdf