200
ORGANIC SYNTHESIS—1995
ΠΙ.Α-6 McKillop, A., Taylor, R.J.K. et al., TL, 35, 8759; Wipf, P. and
Kim,Y.,70C,59,3518.
MeO^ ^OMe
,Br
MeO^ ^OMe
MeO
Br
Dibal-H
, '
THF, -78°C*
OH
9:1
OH
III.A-7 Maryanoff, B.E. et al., 7X, 35,4891; Lindsley, C.W. and DiMare,
M., TL, 35, 5141; Brown, H.C. et al., TA, 5, 1061 and 1075 and TL, 35,
2141.
^f
N > r
R-Alpine-Hydride
I
I
II
THF
**
OH Bzl O
THF
,R
OH Bzl OH
43-57 %, major produc
III.A-8 Vuljanic, T., Kihlberg, J. and Somfai, P. et al., TL, 35, 6937.
HO
NHFmoc
HO
NHFmoc
Me 4 NHB(OAc) 3
MeCN, HOAc
-40°C
Me
) .
HO
7 3 %
III.A-9 Figadere, B. et al., JOC, 59, 7138; Shibata, I. et al., TL, 35, 8625.
O
A.
Bu 3 SnH, S1O2
n"
^n<
CH2CI2, ft
OH
R ^ R '
10-95 %
ORGANIC SYNTHESIS—1995
ΠΙ.Α-6 McKillop, A., Taylor, R.J.K. et al., TL, 35, 8759; Wipf, P. and
Kim,Y.,70C,59,3518.
MeO^ ^OMe
,Br
MeO^ ^OMe
MeO
Br
Dibal-H
, '
THF, -78°C*
OH
9:1
OH
III.A-7 Maryanoff, B.E. et al., 7X, 35,4891; Lindsley, C.W. and DiMare,
M., TL, 35, 5141; Brown, H.C. et al., TA, 5, 1061 and 1075 and TL, 35,
2141.
^f
N > r
R-Alpine-Hydride
I
I
II
THF
**
OH Bzl O
THF
,R
OH Bzl OH
43-57 %, major produc
III.A-8 Vuljanic, T., Kihlberg, J. and Somfai, P. et al., TL, 35, 6937.
HO
NHFmoc
HO
NHFmoc
Me 4 NHB(OAc) 3
MeCN, HOAc
-40°C
Me
) .
HO
7 3 %
III.A-9 Figadere, B. et al., JOC, 59, 7138; Shibata, I. et al., TL, 35, 8625.
O
A.
Bu 3 SnH, S1O2
n"
^n<
CH2CI2, ft
OH
R ^ R '
10-95 %