236
ORGANIC SYNTHESIS—1995
IV.D-3 Schick, H. et al, JOC, 59, 3161.
X ♦ x
1I/^D2
Br
(
sacrificial
anode or
*ir "R
Br
C0 2 Et
metal powder
DMF/THForDMF
59-88%
IV.D-4 Quayle, P. et al, TL, 35, 8883 and 3801.
.OH
/-v^Cr(CO) 5
Cr(CO) 5 »THF
«tO
CAN
63%
2.5 eq
acetone
69% Me
IV.D-5 Schmeck, C. and Hegedus, L.S., JACS, 116, 9927.
Me>^ O
iVRnlì
Me^ ^O.
N—f
(OC) 5 Cr=<
\ h
Me
l)
n BuLi
2) RCHO
0 M
3) hv, CO
/—f
\
R
Ph
32-78%
ORGANIC SYNTHESIS—1995
IV.D-3 Schick, H. et al, JOC, 59, 3161.
X ♦ x
1I/^D2
Br
(
sacrificial
anode or
*ir "R
Br
C0 2 Et
metal powder
DMF/THForDMF
59-88%
IV.D-4 Quayle, P. et al, TL, 35, 8883 and 3801.
.OH
/-v^Cr(CO) 5
Cr(CO) 5 »THF
«tO
CAN
63%
2.5 eq
acetone
69% Me
IV.D-5 Schmeck, C. and Hegedus, L.S., JACS, 116, 9927.
Me>^ O
iVRnlì
Me^ ^O.
N—f
(OC) 5 Cr=<
\ h
Me
l)
n BuLi
2) RCHO
0 M
3) hv, CO
/—f
\
R
Ph
32-78%