pyridine–nHF solution, the photo-induced fluorinative decomposition of arenediazonium salts (ArN2BF4) (fluoro-dediazoniation) and the related compounds, such as quinonediazides and triazenes, has been successfully carried out to produce the corresponding aromatic fluorides (ArF) in good yields. The rate in the fluoro-dediazoniation of para-substituted ArN2BF4 in pyridine–nHF solution did not obey the classical
通过使用
吡啶-n HF溶液,已成功地进行了苯二氮杂鎓盐(ArN 2 BF 4)(
氟脱重氮)和相关化合物(如醌二
叠氮化物和
三氮烯)的光致
氟化分解,以生产相应的芳族
氟化物(ArF)的高收益率。
吡啶-n HF溶液中对位取代ArN 2 BF 4的
氟脱氮反应速率不符合经典的Hammett方程,但与塔夫脱(Taft)的处理方法[双取代基参数关系(D
SP)]很好地吻合。ArN 2 BF 4的热
氟脱氮中反应速率受底物中取代基的影响很大。相反,仅观察到取代基对ArN 2 BF 4的光诱导的
氟脱氮反应的速率有轻微的影响。