USEFUL SYNTHETIC PREPARATIONS
VI.A.10-3 Higgins, R.H. et al., JOC, 59, 2172
365
>— N
OH
ArOH, 130°C
R
ArO
NHR
8-80 %
VI.A.10-4 Hoffmann, H.M.R. et al., SL, 745; Hudlicky, T. and Thorpe,
A.J., SL, 899.
R^ ΛΜ
O»
R2,OTs
- „Λ
R
R2
Rl
BF r OEt 2 , CH 2 C1 2
Rl^ ^O'
-20°C to rt
35-97 %
v
OTs
OH
VI.A.10-5 Hatakeyama, S., Nishizawa, M., et al., TL, 35, 4367; Fang, F.G.
et al., JOC, 59, 6142.
R
Rl
R
R2-OTMS, TMSOTf
ET3S1H
R l/^OR2
0-100 %
VI.A.10-6 Hoffman, R.V. and Nayyar, N.K., JOC, 59, 3530.
O
A . Me
R
N
I
OTf
o
»PrOH, Δ
R
N
0»Pr
I
H 73-92 %
VI.A.10-3 Higgins, R.H. et al., JOC, 59, 2172
365
>— N
OH
ArOH, 130°C
R
ArO
NHR
8-80 %
VI.A.10-4 Hoffmann, H.M.R. et al., SL, 745; Hudlicky, T. and Thorpe,
A.J., SL, 899.
R^ ΛΜ
O»
R2,OTs
- „Λ
R
R2
Rl
BF r OEt 2 , CH 2 C1 2
Rl^ ^O'
-20°C to rt
35-97 %
v
OTs
OH
VI.A.10-5 Hatakeyama, S., Nishizawa, M., et al., TL, 35, 4367; Fang, F.G.
et al., JOC, 59, 6142.
R
Rl
R
R2-OTMS, TMSOTf
ET3S1H
R l/^OR2
0-100 %
VI.A.10-6 Hoffman, R.V. and Nayyar, N.K., JOC, 59, 3530.
O
A . Me
R
N
I
OTf
o
»PrOH, Δ
R
N
0»Pr
I
H 73-92 %