Table 4. DSC Analysis of Selected Diazo Transfer Reagents.
entry | compounda | Tinit (°C) | Tonset (°C) | ΔHD (J g–1) | ΔHD (kJ mol–1) |
---|---|---|---|---|---|
1 | TsN3 | 128 | 158 | –1057 | –208 |
2 | p-ABSA | 130 | 156 | –790 | –190 |
3 | p-ABSAb | 120 | 138 | –928 | –223 |
4 | p-CBSA | 148 | 167 | –923 | –210 |
5 | m-CBSA | 93c | 155 | –920 | –209 |
6 | o-NBSA | 123 | 151 | –1541 | –352 |
7 | ADMP | 167 | 202 | –793 | –226 |
8 | NfN3 | 102 | 136 | –582 | –189 |
9 | ADT | 159 | 186 | –1135 | –207 |
Results using DSC method A and average results, where n = 2 unless otherwise noted.
Using DSC method B and n = 1.
Reported as the initiation of melting point, which obscures exotherm initiation.