250
ORGANIC SYNTHESIS—1995
IV.E-22 Murphy, P.J. et al., JCS(Pl), 2403.
r»T>u + o r -
v -
1
**
Na,S
PPh 3
+ BF 4
THF
reflux
0 2 Et
0-98%
IV.E-23 Nakayama, J. and Yoshimura, K., TL, 35, 2709.
69%
IV.E-24 Kirsch, G. and Primi, D., SC, 24, 1721; see also: Reddy, K.V.
and Rajappa, S., H, 37, 347.
R ^ ^ C H O
i. HSCH 2 C0 2 Me
R N — *
l ^ _
2.CH 3 ONa *"
^ v N
OH
C0 2 Me
50-96%
IV.E-25 Menichetti, S, Nativi, C. et al., S, 521
:ι
AlCI,
NPhth
50-90%
ORGANIC SYNTHESIS—1995
IV.E-22 Murphy, P.J. et al., JCS(Pl), 2403.
r»T>u + o r -
v -
1
**
Na,S
PPh 3
+ BF 4
THF
reflux
0 2 Et
0-98%
IV.E-23 Nakayama, J. and Yoshimura, K., TL, 35, 2709.
69%
IV.E-24 Kirsch, G. and Primi, D., SC, 24, 1721; see also: Reddy, K.V.
and Rajappa, S., H, 37, 347.
R ^ ^ C H O
i. HSCH 2 C0 2 Me
R N — *
l ^ _
2.CH 3 ONa *"
^ v N
OH
C0 2 Me
50-96%
IV.E-25 Menichetti, S, Nativi, C. et al., S, 521
:ι
AlCI,
NPhth
50-90%