102
ORGANIC SYNTHESIS—1995
I.E. Thermal and Photochemical Reactions
T.E.I. Cvcloadditions
I.E.1-1 Haider, N. et al., H, 38, 1845, 1805.
CF 3
1
I + \
O
dioxane
reflux, lh
I.E.1-2 de Meijere, A. et al, CB, 127, 1051; Walters, M.A. and Lee,
M.D., TL, 35, 8307.
R
1
R
1
C U .C0 2 Me
O +
R
*- ( o f
C
°2
Me
neat, 20-60°C
l £ L _ _
R
9-90%
endo:exo = 1.2-4:1
I.E. 1-3 Levesque, S. and Brassard, P., H, 38, 2205; Couturier, M. and
Brassard, P., S, 703.
>
l
"
R
1
O
R
1
R
N
I
NMe·
ORGANIC SYNTHESIS—1995
I.E. Thermal and Photochemical Reactions
T.E.I. Cvcloadditions
I.E.1-1 Haider, N. et al., H, 38, 1845, 1805.
CF 3
1
I + \
O
dioxane
reflux, lh
I.E.1-2 de Meijere, A. et al, CB, 127, 1051; Walters, M.A. and Lee,
M.D., TL, 35, 8307.
R
1
R
1
C U .C0 2 Me
O +
R
*- ( o f
C
°2
Me
neat, 20-60°C
l £ L _ _
R
9-90%
endo:exo = 1.2-4:1
I.E. 1-3 Levesque, S. and Brassard, P., H, 38, 2205; Couturier, M. and
Brassard, P., S, 703.
>
l
"
R
1
O
R
1
R
N
I
NMe·