irradiation, in liquid phase, is reported. Under MW irradiation the yields are much higher, sometimes substantially (by almost double) and, the amount of solvent used is at least 5-fold less. The pyrrolopyridazine (PP) derivatives are very intense blue emitters and have high quantum yields (up to 90%) while pyrrolophthalazine (PHP) compounds are still intense blue emitters but the quantum yield is negligible
报道了一种在液相中使用微波(MW)辐射制备含有
吡咯二嗪部分的高荧光衍
生物的快速,有效,通用和环境友好的方法。在MW照射下,收率要高得多,有时要高得多(几乎翻倍),所用溶剂的量至少要少5倍。
吡咯并
哒嗪(PP)衍
生物是非常强的蓝色发射体,具有很高的量子产率(高达90%),而
吡咯并
邻苯二甲酸(
PHP)化合物仍然是强蓝色发射体,但量子产率可忽略不计。发现取代基对荧光的一定影响,在7位的那些对于荧光至关重要。
吡咯并环上的取代基数目似乎对荧光没有重要作用,但是,