168
ORGANIC SYNTHESIS—1995
I.H.2-23 Boyer, F.D. and Lallemand, J.Y., T, 50, 10443; Schwede, W.
et al., ST, 59, 176.
BnQ
BnO" > " ''OBn
BnÖ
1. FeCl 3 , DMF, 70°C
2. AcONa, MeOH, Δ * BnO
BnO
OBn
49%
I.H.2-24 Miyashita, A. et al., CPB, 42, 1960.
Me
\ *
/
Γ
K 2 CQ 3 , DMF, 60°C
A r \ ^ °
Ν Λ
OCH^r
1
Ar
1 CH 2
50-56%
Me
I.H.2-25 Frauenrath, H. and Kaulard, M., SL, 517.
R
x°
H O
H 2 , RuCl 4 (diop) 3
EtOH, 80°C
R O
X
H o//
47-90%
e.e. = 12-37%
I.H.2-26 Trost, B.M. and Czeskis, B.A., TL, 35, 211; Desimoni, G. et
al., Γ, 50, 1821.
Pd 2 (dba) 3 CHCl 3
PhS0 2 / ^ » ^
(2-Me-Ph) 3 P
P h s e A - ^ A R ·
phH
'
Ρ
"
5028
^ ^
R
"
Phs0 2 S
60-70%
d.e. = 71%
ORGANIC SYNTHESIS—1995
I.H.2-23 Boyer, F.D. and Lallemand, J.Y., T, 50, 10443; Schwede, W.
et al., ST, 59, 176.
BnQ
BnO" > " ''OBn
BnÖ
1. FeCl 3 , DMF, 70°C
2. AcONa, MeOH, Δ * BnO
BnO
OBn
49%
I.H.2-24 Miyashita, A. et al., CPB, 42, 1960.
Me
\ *
/
Γ
K 2 CQ 3 , DMF, 60°C
A r \ ^ °
Ν Λ
OCH^r
1
Ar
1 CH 2
50-56%
Me
I.H.2-25 Frauenrath, H. and Kaulard, M., SL, 517.
R
x°
H O
H 2 , RuCl 4 (diop) 3
EtOH, 80°C
R O
X
H o//
47-90%
e.e. = 12-37%
I.H.2-26 Trost, B.M. and Czeskis, B.A., TL, 35, 211; Desimoni, G. et
al., Γ, 50, 1821.
Pd 2 (dba) 3 CHCl 3
PhS0 2 / ^ » ^
(2-Me-Ph) 3 P
P h s e A - ^ A R ·
phH
'
Ρ
"
5028
^ ^
R
"
Phs0 2 S
60-70%
d.e. = 71%