EPR studies of nitrogen-centred free radicals. Part 50.1 Unusual decomposition behaviour of isolable stable thioaminyl free radicals at high temperature
作者:Yozo Miura、Masayoshi Momoki
DOI:10.1039/a800163d
日期:——
completely decompose, giving two non-radical compounds. On the other hand, 3a is thermally much more stable and the complete decomposition requires heating for 8 days. On the basis of the product analysis study the thermal decomposition mechanism is proposed and the reason why 3a is so stable at high temperature is discussed.
的热稳定性ñ - (4-硝基苯基硫基) - ñ - (4-叔丁基-2,6-二苯基苯基)aminyl 1a中,ñ - (4-硝基苯基硫基) - ñ - (2,4,6-三苯基苯基)aminyl 2a中,N-(2,4-二氯苯硫基)-N -2,4,6-三苯苯基)氨基2b和N-(4-硝基苯硫基)-N-(2-叔丁基)已经研究了-丁基-4,6-二苯基苯基)氨基3a。当将1a,2a和2b在脱气的苯中于80°C加热24–30 h时,它们几乎完全分解,得到两种非自由基化合物。另一方面,3a在热方面更稳定,并且完全分解需要加热8天。在产品分析研究的基础上,提出了热分解机理,并讨论了3a在高温下如此稳定的原因。