86
ORGANIC SYNTHESIS—1995
LB.4-2 Hatakeyama, S. et al., T, 50, 13369; Bienayme, H. and
Yezeguelian, C , T, 50, 3389; Crisp, G.T. and Glink, P.T., T, 50, 2623;
Ozawa, F., Hayashi, T. et al., CC, 1323.
TBSO
Pd(PPh 3 ) 4
TEA/MeCN, reflux
OTBS
TBSO° ^ " "OTBS
81%
I.B.4-3 de Meijere, A. et al., SL, 189; Adam, S., T, 50, 3327; Jeffery,
T. and Gallard, J.-C, TL, 35, 4105; Jeffery, T., TL, 35, 3051; Tamaru, Y.
et al., TL, 35, 4133; Yu, K.-L. et al., TL, 35, 8919.
C0 2 Me
ryci +
Pd(OAc) 2
PPh 3 ,TEA^
^
P h
THF/MeCN *
60°C, 3d
42%
I.B.4-4 Casson, S. and Kocienski, P., JCS(Pl), 1187; Majal, C. and
Vaultier, M., TL, 35, 3089.
Bu 1 ■
O
ZnBr
I
TfO
[Pd 2 (dba) 3 ]Ph 3 As
THF
*"
OBn
BnO
J I
67%
ORGANIC SYNTHESIS—1995
LB.4-2 Hatakeyama, S. et al., T, 50, 13369; Bienayme, H. and
Yezeguelian, C , T, 50, 3389; Crisp, G.T. and Glink, P.T., T, 50, 2623;
Ozawa, F., Hayashi, T. et al., CC, 1323.
TBSO
Pd(PPh 3 ) 4
TEA/MeCN, reflux
OTBS
TBSO° ^ " "OTBS
81%
I.B.4-3 de Meijere, A. et al., SL, 189; Adam, S., T, 50, 3327; Jeffery,
T. and Gallard, J.-C, TL, 35, 4105; Jeffery, T., TL, 35, 3051; Tamaru, Y.
et al., TL, 35, 4133; Yu, K.-L. et al., TL, 35, 8919.
C0 2 Me
ryci +
Pd(OAc) 2
PPh 3 ,TEA^
^
P h
THF/MeCN *
60°C, 3d
42%
I.B.4-4 Casson, S. and Kocienski, P., JCS(Pl), 1187; Majal, C. and
Vaultier, M., TL, 35, 3089.
Bu 1 ■
O
ZnBr
I
TfO
[Pd 2 (dba) 3 ]Ph 3 As
THF
*"
OBn
BnO
J I
67%