USEFUL SYNTHETIC PREPARATIONS
397
VLG-4 McCarthy, J.R. et al., TL, 35, 1027; Liebeskind, L.S. et al., JOC,
59,7917.
F
F
I
BujSnH, AIBN
I
™
S n ^ ^ k .
p. . . Λ
** TMS. Λ^
Θ
91 %
equivalent
VI.G-5 Carpita, A., Rossi, R. et al., T, 50,4853; Quintard, J.P. et al., JOC,
59, 7959.
,OAc
R
RCuMgBrXLiBr, THF.
^
•-X,
SnBu 3
f
^SnBu 3
0-99 %
VI.G-6 Piers, E. and Skerlj, R.T., CJC, 72, 2468; Greeves, N. and Torode,
J.S., SL, 537; Cummins, C.H. and Gordon, E.J., TL, 35, 8133; see also:
Ardisson, J. et al., TL, 35, 7767 and SL, 995.
Ç0 2 R'
(Me 3 Sn) 2 , Pd(PPh 3 ) 4
R ^ ^L·
R
C0 2 R' -
—
-
- ^
Y ^ S n M e 3
Me 3 Sn
6 4 . 9 5 %
397
VLG-4 McCarthy, J.R. et al., TL, 35, 1027; Liebeskind, L.S. et al., JOC,
59,7917.
F
F
I
BujSnH, AIBN
I
™
S n ^ ^ k .
p. . . Λ
** TMS. Λ^
Θ
91 %
equivalent
VI.G-5 Carpita, A., Rossi, R. et al., T, 50,4853; Quintard, J.P. et al., JOC,
59, 7959.
,OAc
R
RCuMgBrXLiBr, THF.
^
•-X,
SnBu 3
f
^SnBu 3
0-99 %
VI.G-6 Piers, E. and Skerlj, R.T., CJC, 72, 2468; Greeves, N. and Torode,
J.S., SL, 537; Cummins, C.H. and Gordon, E.J., TL, 35, 8133; see also:
Ardisson, J. et al., TL, 35, 7767 and SL, 995.
Ç0 2 R'
(Me 3 Sn) 2 , Pd(PPh 3 ) 4
R ^ ^L·
R
C0 2 R' -
—
-
- ^
Y ^ S n M e 3
Me 3 Sn
6 4 . 9 5 %