CARBON-CARBON BOND FORMING REACTIONS
51
I.A.7.a.4-ll Mikami, K. et al., TL, 35, 6693 & 3133 and TA, 5, 1087;
Kato, N., Takeshita, H. et al., SL, 337; Kuwajiraa, I. et al., TL, 35, 7965
and JOC, 59, 518; Laschat, S. and Grehl, M., AG(E), 33, 458; Yoneda, N.
et al., BCJ, 67, 3040; Demir, A.S. et al., SC, 24, 137.
CX-Λ
1)
l )
C0 2 Me 4 A M S
^
^
- C o 2 M e
94% syn, 89% ee
various other ene reactions reported
I.A.7.a.4-12 Bosnich, B. et al., JACS, 116, 1821.
O
[Rh(diphosphine)]C10 4
Q ^ / N ^ R
H
► Λ _ Γ
S-binap
17-81% ee
I.A.7.a.4-13 Kobayashi, S. and Nishio, K., 5, 457; Masuyama, Y. et al.,
CC, 1451; Shono, T., Kashimura, S. et al., JOC, 59, 273.
Ό ^ *
3 i)ci3SiH/pd
r * o y ^ R
^ R
4
2) RCHO, DMF
R ^ l
^ R
4
82-91%, syn: anti = 92:8 to 99:1
Pd(OAc) 2 , TPP, SnCl2, HX or electrolysis used similarly