376
ORGANIC SYNTHESIS—1995
VI.A.13-8 Kikugawa, Y. et al., OPP, 26, 111.
Q
N OH
1 ; R C H *
C H *
Q H
R ^ ^
O N H 2
Ph 3 P,DEAD,CH 2 Cl 2
K
2: NH 2 NH 2
75 "*
5 %
O
VI.A.13-9 Paradisi, C. et al., TL, 35, 301.
O
T
*BuSNMPrOH,A
^ Ν ^
■v *
N
^
— * *
i
N
A r
H 44-65%
VI.A.13-10 Staszak, M.A. and Doecke, C.W., TL, 35, 6021.
_
__
l:R-X,NaOH
_
_ „
B o c ^ O B o c
TBAB,CH 2 C1 2
R - N -
O H
I
2:TFA
**
I
H
H
80-94 %
VI.A.13-11 Dodd, D.S. and Kozikowski, A.P., TL, 35,977; Carrie, R. et
al., BSB, 102,719(1993).
^ λ ^ Ν ^
Rap^NNCOzR^PhaP^ H
N
NH 2
R
Y
R
H O xV H
Rl/\, ff
™ >
R 1 > ^ R 2
K
K
64-95 %
ORGANIC SYNTHESIS—1995
VI.A.13-8 Kikugawa, Y. et al., OPP, 26, 111.
Q
N OH
1 ; R C H *
C H *
Q H
R ^ ^
O N H 2
Ph 3 P,DEAD,CH 2 Cl 2
K
2: NH 2 NH 2
75 "*
5 %
O
VI.A.13-9 Paradisi, C. et al., TL, 35, 301.
O
T
*BuSNMPrOH,A
^ Ν ^
■v *
N
^
— * *
i
N
A r
H 44-65%
VI.A.13-10 Staszak, M.A. and Doecke, C.W., TL, 35, 6021.
_
__
l:R-X,NaOH
_
_ „
B o c ^ O B o c
TBAB,CH 2 C1 2
R - N -
O H
I
2:TFA
**
I
H
H
80-94 %
VI.A.13-11 Dodd, D.S. and Kozikowski, A.P., TL, 35,977; Carrie, R. et
al., BSB, 102,719(1993).
^ λ ^ Ν ^
Rap^NNCOzR^PhaP^ H
N
NH 2
R
Y
R
H O xV H
Rl/\, ff
™ >
R 1 > ^ R 2
K
K
64-95 %