Table 1.
Activation parameters for the thermolyses of N-benzyl-N-nitrosoamides
| Amide | R | Solvent | a |  |
ΔuTS / kcal mol-1 | σ |  |
|---|---|---|---|---|---|---|---|
| pivalamide | MeO | DMSO | 388 (100.28) |
1.74 10-2 (1.90 10-2) |
245.62 (59.91) |
8.88 10-2 (1.77 10-2) |
0.96 (1.94 10-2) |
| " | Me | " | 213 (111.62) |
4.04 10-2 (1.58) |
143.96 (67.23) |
3.87 10-2 (2.43 10-2) |
0.90 (7.98 10-2) |
| " | H | " | 9 (4.12) |
2.82 105 (1.48 106) |
22.76 (3.23) |
4.02 10-2 (3.32 10-2) |
0.24 (6.79 10-2) |
| " | NO2 | " | 168 | 5.02 10-2 | 119.54 | 5.35 10-2 | 0.86 |
| tosylamide | H | " | 211 | 4.73 10-3 | 174.47 | 1.14 10-1 | 0.88 |
| " | H | toluene | 450 | 2.44 10-3 | 346.84 | 5.63 10-2 | 0.95 |
Standard deviations are given in parentheses.