SYNTHESIS OF HETEROCYCLES
283
IV.K.la-12 Casutt, M. et al., S, 247.
MeHN^^COîMe · HC1
^ ν ^
DMF/NaOMe
IV.K.la-13 Molina, P. et al., TL, 35, 2235 and CB, 127, 1641
,C0 2 Et
l.MeNCO
N=PPh 3
2. NH 3
"
'
-"^
M e
o- r
N
X
Λ
/
50%
NH 2
>—O
IV.K.la-14 Takahashi, M. et al., JHC, 31, 205.
ÜE*
T V .
)Ac
N ^ M '
'
2.NaOAc
N ^ T '
C l
50%
C l
- — ^
x , ^
Ar
IV.K.la-15 Nagao, Y. et al., H, 38, 587.
Ai
v
Ar'CHO
\
^ A r '
ArCH l N H 2
( E , o 2 C ) 2 0 0
A l _ <
\
Ph-H,p-TsOH
Ν Λ , Λ *
30-67% H
C0 2 Et
283
IV.K.la-12 Casutt, M. et al., S, 247.
MeHN^^COîMe · HC1
^ ν ^
DMF/NaOMe
IV.K.la-13 Molina, P. et al., TL, 35, 2235 and CB, 127, 1641
,C0 2 Et
l.MeNCO
N=PPh 3
2. NH 3
"
'
-"^
M e
o- r
N
X
Λ
/
50%
NH 2
>—O
IV.K.la-14 Takahashi, M. et al., JHC, 31, 205.
ÜE*
T V .
)Ac
N ^ M '
'
2.NaOAc
N ^ T '
C l
50%
C l
- — ^
x , ^
Ar
IV.K.la-15 Nagao, Y. et al., H, 38, 587.
Ai
v
Ar'CHO
\
^ A r '
ArCH l N H 2
( E , o 2 C ) 2 0 0
A l _ <
\
Ph-H,p-TsOH
Ν Λ , Λ *
30-67% H
C0 2 Et