282
ORGANIC SYNTHESIS—1995
IV.K.la-8 Sorrell, T.N. and Allen, W.E., JOC, 59, 1589; see also: Hua,
D.H. et al., JOC, 59, 5084.
V
HCONH 2
γ
5
^
R l
20-82%
IV.K.la-9 Little, T.L. and Webber, S.E., JOC, 59, 7299; Svete, J.,
Stanovnik, B. and Tisler, M., JHC, 31, 1259.
I
H 2 N
r.t
R
g 41
NHAc
78%
IV.K.la-10 Nunami, K. et al., JOC, 59, 7635; DeKimpe, N. et al., RTC,
113, 283.
Bis. JR.
y '
RNH 2
*K
^C0 2 Me
T E A / D M F
V ^
C O
*
M e
CT"
0-85%
IV.K.la-11 Brackeen, M.F. et al., TL, 35, 1634; see also: Katritzky,
A.R. et al., H, 38, 2415.
^ ^
NH 4 OAc
+ RCHO
►
_ A s .
AcOH
Et0 2 C7 ^ O
Ä -o
Et0 2 ~
2
6 5
H 66-90%
ORGANIC SYNTHESIS—1995
IV.K.la-8 Sorrell, T.N. and Allen, W.E., JOC, 59, 1589; see also: Hua,
D.H. et al., JOC, 59, 5084.
V
HCONH 2
γ
5
^
R l
20-82%
IV.K.la-9 Little, T.L. and Webber, S.E., JOC, 59, 7299; Svete, J.,
Stanovnik, B. and Tisler, M., JHC, 31, 1259.
I
H 2 N
r.t
R
g 41
NHAc
78%
IV.K.la-10 Nunami, K. et al., JOC, 59, 7635; DeKimpe, N. et al., RTC,
113, 283.
Bis. JR.
y '
RNH 2
*K
^C0 2 Me
T E A / D M F
V ^
C O
*
M e
CT"
0-85%
IV.K.la-11 Brackeen, M.F. et al., TL, 35, 1634; see also: Katritzky,
A.R. et al., H, 38, 2415.
^ ^
NH 4 OAc
+ RCHO
►
_ A s .
AcOH
Et0 2 C7 ^ O
Ä -o
Et0 2 ~
2
6 5
H 66-90%