By screening of reaction conditions and evaluation of its fluorescent properties, an environmentally sensitive fluorescent group, 8-aza-7-hydroxy-4-methylcoumarin, was synthesized in 70% yield using MgBr2 as a Lewis acid under microwave irradiation. It has a high fluorescent quantum yield, is adequately soluble in water, and produces fluorescent emission in protic solvents and at neutral pH. Therefore
                                    通过筛选反应条件并评估其荧光性质,在微波辐射下使用MgBr 2作为
路易斯酸以70%的产率合成了对环境敏感的荧光基团8-氮杂-7-羟基-4-甲基
香豆素。它具有很高的荧光量子产率,可充分溶于
水,并在质子溶剂和中性pH下产生荧光发射。因此,它在需要在亲
水环境(例如细胞)中发射的
生物传感器中可能很有用。