1 |
−78 °C, 10 min, then 20 °C, 5h |
NaHCO3 at 20 °C |
1:2.5 |
2 |
−78 °C, 10 min |
NaHCO3 at −78 °C |
>20:1 |
3 |
−78 °C, 10 min |
H2O at −78 °C |
>20:1 |
4 |
−78 °C, 10 min, then 20 °C, 10 min |
O2 (air) |
1:1 |
5 |
−78 °C, 10 min |
NaHCO3 at −78 °C, then O2 (air) at −78 °C |
>20:1 |
6 |
−78 °C, 10 min |
O2 (air) at −78 °C |
6a recov. |
7 |
−78 °C, 10 min |
I2 at −78 °C |
6a recov. |
8 |
−78 °C, 10 min, then 20 °C, 10 min, then −78 °C, 10 min |
NaHCO3 at −78 °C |
1:1 |
9 |
−78 °C, 10 min |
1M NH4OH at −78 °C |
>20:1 |
10 |
−78 °C, 10 min |
2M HCl at −78 °C |
>20:1 |
11 |
−72 °C, 10 min |
NaHCO3 at −72 °C |
>20:1 |
12 |
−61 °C, 30 min |
NaHCO3 at −72 °C |
>20:1 |
13 |
−50 °C, 10 min |
NaHCO3 at −50 °C |
>20:1 |
14 |
−25 °C, 10 min |
NaHCO3 at −25 °C |
1:1.5 |
15 |
−78 °C, 10 min |
Bu3SnH, then NaHCO3 at −78 °C |
>20:1 |
16 |
−78 °C, 10 min |
CuBr, then NaHCO3 at −78 °C |
>20:1 |
17 |
−78 °C, 10 min |
MeOH, then NaHCO3 at −78 °C |
>20:1 |
18 |
−78 °C, 10 min |
PhCO2H, then NaHCO3 at −78 °C |
>20:1 |
19 |
−78 °C, 10 min |
CF3CO2H, then NaHCO3 at −78 °C |
>20:1 |
20 |
−78 °C, 10 min |
Bu3SnH, then O2 (air) at−78 °C |
6a recov. |
21 |
−78 °C, 10 min |
PhSH, then O2 (air) at−78 °C |
6a recov. |