226
ORGANIC SYNTHESIS—1995
IV.A-9 Aggarwal, V.K. et al., TA, 5, 723; Griengl, H. et al., LA, 999.
CIO/
RCHO
R
jC ^Ph
50% NaOH
J f \
® ^
MeOH
e ,„ ™ 0
*
5-67%, 28-32% ee
IV.A-10 Gravier-Pelletier, C. et al., SC, 24, 2843.
N^ /
Mitsunobu
^ / \
/
H O
't)H
36-75% 'ί)Η
IV.A-11 Capozzi, G., Skowronska, A. et al, SL, 267.
\^<*Λ*^
Μί
*Ί_Λ ι
TBAF Rj Λ
-*
y
V
CH,CI,
R i
" 7 [
CH 2 C1 2
30-86%
30-82%
R 2
R 4
C H 2 C '
2
R2 Br
«2
R 4
IV.B. Oxetanes. Azetidines and Thietanes
IV.B-1 Beak, P. et al., JOC, 59, 276.
çr
X I
ψ ^
s-B»Li „
|p ^ | — Γ ^
Boc
TMEDA
l^ ^J
Boc
82%
ORGANIC SYNTHESIS—1995
IV.A-9 Aggarwal, V.K. et al., TA, 5, 723; Griengl, H. et al., LA, 999.
CIO/
RCHO
R
jC ^Ph
50% NaOH
J f \
® ^
MeOH
e ,„ ™ 0
*
5-67%, 28-32% ee
IV.A-10 Gravier-Pelletier, C. et al., SC, 24, 2843.
N^ /
Mitsunobu
^ / \
/
H O
't)H
36-75% 'ί)Η
IV.A-11 Capozzi, G., Skowronska, A. et al, SL, 267.
\^<*Λ*^
Μί
*Ί_Λ ι
TBAF Rj Λ
-*
y
V
CH,CI,
R i
" 7 [
CH 2 C1 2
30-86%
30-82%
R 2
R 4
C H 2 C '
2
R2 Br
«2
R 4
IV.B. Oxetanes. Azetidines and Thietanes
IV.B-1 Beak, P. et al., JOC, 59, 276.
çr
X I
ψ ^
s-B»Li „
|p ^ | — Γ ^
Boc
TMEDA
l^ ^J
Boc
82%