SYNTHESIS OF HETEROCYCLES
IV.D-14 Rosini, G. et al., TL, 35, 2949.
/^T~f*°
H 2 Q 2 ,AcOH
V ^ - J
QO C
Me
IV.D-15 Cha, J.K. et al., TL, 35, 3449.
239
95%
PhI(OAc) 2
76-82% CT
IV.D-16 Taguchi, T. et al., TL, 35, 1059; D'Annibale, A. and Trogolo, C.
TL, 35, 2083; Cazes, B. et al., TL, 35, 2881.
0 2 Me
I 2 , CuO
Ti(O
l Bu) 4
MeO
OBn
C0 2 Me
CH 2 C1 2
rt
IV.D-17 Sato, F. et al., TL, 35, 4389.
™s^^^S
AD mix-ß
O E t
'BuOH-^O
BnO
82%, (transxis = 13:1)
O ^ o ^ T M S
75%, 86% ee