166
ORGANIC SYNTHESIS—1995
I.H.2-17 Fukumoto, K. et al., JOC, 59, 8092.
POC1,
i H
pyridine, rt, 6h
OTBDPS
OTBDPS
96%
I.H.2-18 Yamamoto, K., Takahashi, T. et al., TL, 35, 3333; see also:
Fukumoto, K. et al., SL, 599.
Pd(PPh 3 ) 4
C 5 H n AcOH/Ph-H
^ - v
+
5 " 80°C, 3.5h
\
Q
ÒBn
°7^V
V J H V K ^ C S H U
36% OBn
I.H.2-19 Vo, N.H. and Snider, B.B., JOC, 59, 5419; see also:
McNelis, E. et al., T, 50, 11793.
Mn(pic) 3 , DMF, 100°C
ORGANIC SYNTHESIS—1995
I.H.2-17 Fukumoto, K. et al., JOC, 59, 8092.
POC1,
i H
pyridine, rt, 6h
OTBDPS
OTBDPS
96%
I.H.2-18 Yamamoto, K., Takahashi, T. et al., TL, 35, 3333; see also:
Fukumoto, K. et al., SL, 599.
Pd(PPh 3 ) 4
C 5 H n AcOH/Ph-H
^ - v
+
5 " 80°C, 3.5h
\
Q
ÒBn
°7^V
V J H V K ^ C S H U
36% OBn
I.H.2-19 Vo, N.H. and Snider, B.B., JOC, 59, 5419; see also:
McNelis, E. et al., T, 50, 11793.
Mn(pic) 3 , DMF, 100°C