SYNTHESIS OF HETEROCYCLES
IV.E-5 Jiang, S. and Turos, E., TL, 35, 7889.
245
Lewis acid
2. Ce(NH 4 ) 2 (N0 3 ) 6
R .
CH 3 OH
78 °C, 1 atm CO ~V.
15-71%
IV.E-6 Lautens, M. et al., JACS, 116, 8821.
Me0 2 (
Pd 2 (dba) 3
MeO
(iPrO) 3 P
PhMe, reflux
71-75%
IV.E-7 Iwata, C. et al., CC, 1529 and JOC, 59, 4727.
R \
R
SPh
R,
-
&
*
*
R t = (CH 2 ) n OH
n
n = l,2
trace-73%
IV.E-8 McKervey, M.A. et al., TL, 35, 7269; see also: Kazuhiro, M.,
Aoyama, T. and Shioiri, T., SL, 461.
OR*
O- 'R
64%, 61% de
IV.E-5 Jiang, S. and Turos, E., TL, 35, 7889.
245
Lewis acid
2. Ce(NH 4 ) 2 (N0 3 ) 6
R .
CH 3 OH
78 °C, 1 atm CO ~V.
15-71%
IV.E-6 Lautens, M. et al., JACS, 116, 8821.
Me0 2 (
Pd 2 (dba) 3
MeO
(iPrO) 3 P
PhMe, reflux
71-75%
IV.E-7 Iwata, C. et al., CC, 1529 and JOC, 59, 4727.
R \
R
SPh
R,
-
&
*
*
R t = (CH 2 ) n OH
n
n = l,2
trace-73%
IV.E-8 McKervey, M.A. et al., TL, 35, 7269; see also: Kazuhiro, M.,
Aoyama, T. and Shioiri, T., SL, 461.
OR*
O- 'R
64%, 61% de