CARBON-CARBON BOND FORMING REACTIONS
109
I.E.1-23 Cava, M.P. et al., JOC, 59, 4308; Fillion, H. et al., SL, 459.
Br
^ B z
Bz
Br
ij^
Nal, Me 2 CO
Br
ß
done twice
B z ^
49%
I.E.1-24 Kanematsu, K. et al., TL, 35, 3577; Wu, H.J. et al., H, 38,
1507 and TL, 35, 729; see also: De Clercq, P.J. et al., BSB, 103, 433.
? " ^
'BuOK
'BuOH
I.E.1-25 Bush, E.J. et al, CC, 2145.
99%
MeO
CHO
S0 2 Ph
MeO
Ac 2 Q
140°C
S0 2 Ph
>80%
exo:endo = 2.6-4.2:1
109
I.E.1-23 Cava, M.P. et al., JOC, 59, 4308; Fillion, H. et al., SL, 459.
Br
^ B z
Bz
Br
ij^
Nal, Me 2 CO
Br
ß
done twice
B z ^
49%
I.E.1-24 Kanematsu, K. et al., TL, 35, 3577; Wu, H.J. et al., H, 38,
1507 and TL, 35, 729; see also: De Clercq, P.J. et al., BSB, 103, 433.
? " ^
'BuOK
'BuOH
I.E.1-25 Bush, E.J. et al, CC, 2145.
99%
MeO
CHO
S0 2 Ph
MeO
Ac 2 Q
140°C
S0 2 Ph
>80%
exo:endo = 2.6-4.2:1