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本文用3,5-二(5-溴嘧啶-2-基)-1-叔丁基苯(2)与3,5-二(4,4,5,5-四甲基-1,3,2,-二氧杂戊硼烷-2-基)-1-叔丁基苯(3)为单体在Pd(PPh_3)_4催化下,经一步Suzuki交叉偶联反应合成得到3种新型含嘧啶环的共轭大环化合物1(1_(8mer),1_(10mer)和1_(12mer))。这些化合物的结构均通过1H NMR和MALDI-TOF MS表征,并利用紫外、荧光光谱对其光学性能进行了初步的研究。结果表明,这种方法可以高效地制备一系列具有不同环大小的共轭大环化合物,为进一步制备类似的共轭大环化合物提供了新的合成策略。
In this paper, 3,5-bis (5-bromopyrimidin-2-yl) -1-tert-butylbenzene (2) 2) -dioxaborolan-2-yl) -1-tert-butylbenzene (3) as monomer under the catalysis of Pd (PPh_3) _4, one-step Suzuki cross- Cyclic conjugated macrocycles 1 (1_ (8mer), 1_ (10mer) and 1_ (12mer)). The structures of these compounds were characterized by 1H NMR and MALDI-TOF MS, respectively. Their optical properties were studied by UV and fluorescence spectroscopy. The results show that this method can efficiently prepare a series of conjugated macrocycles with different ring sizes and provide a new synthesis strategy for further preparation of similar conjugated macrocycles.