SYNTHESIS OF HETEROCYCLES
225
IV.A-5 Davis, F.A. et al., JOC, 59, 3243.
„
QMe
R^
^CO,Me
T , XX°
a
- "Y
H
p-Tolyr
N
R
►
I
.78 o C
S(0)-Tolyl-p
60-77%, (2S, 3S)
IV.A-6 DeKimpe, N. et al., TL, 35, 8023 and SL, 287; see also:
Jahnisch, K., JPR, 336, 73; Sweeney, J.B. et al., TL, 35, 3159.
RL ^R
2
R
1
H
. 7 8 o C ! . 2 h
n = 1,2
1.1 eg R
2
Li
| ^
THF
*~
À
).
58-89%
IV.A-7 Deshmulch, M. et al., M, 125, 743; Atkinson, R.S. et al., CC,
2031.
NH,
LTA
CH 2 C1 2
Rs
R
1
,R^
R
3
58-72%
IV.A-8 Yamamoto, H. et al., SL, 521; Aggarwal, V.K. et al., JACS, 116,
5973; Bravo, P. et al., TA, 5, 987; Heimgartner, H. et al., HCA, 77, 1077.
RCHO +
CH 2 N 2
ATPH
CH 2 C1 2
-78 °C
* > <
75-85%
225
IV.A-5 Davis, F.A. et al., JOC, 59, 3243.
„
QMe
R^
^CO,Me
T , XX°
a
- "Y
H
p-Tolyr
N
R
►
I
.78 o C
S(0)-Tolyl-p
60-77%, (2S, 3S)
IV.A-6 DeKimpe, N. et al., TL, 35, 8023 and SL, 287; see also:
Jahnisch, K., JPR, 336, 73; Sweeney, J.B. et al., TL, 35, 3159.
RL ^R
2
R
1
H
. 7 8 o C ! . 2 h
n = 1,2
1.1 eg R
2
Li
| ^
THF
*~
À
).
58-89%
IV.A-7 Deshmulch, M. et al., M, 125, 743; Atkinson, R.S. et al., CC,
2031.
NH,
LTA
CH 2 C1 2
Rs
R
1
,R^
R
3
58-72%
IV.A-8 Yamamoto, H. et al., SL, 521; Aggarwal, V.K. et al., JACS, 116,
5973; Bravo, P. et al., TA, 5, 987; Heimgartner, H. et al., HCA, 77, 1077.
RCHO +
CH 2 N 2
ATPH
CH 2 C1 2
-78 °C
* > <
75-85%