Synthesis of 5-cyanopyrazolo[1,5-a]pyridine derivatives via tandem reaction and their optical properties
2015
Abstract A series of 2- and 2,4-substituted 5-cyanopyrazolo[1,5- a ]pyridine derivatives were conveniently synthesized by a one-pot tandem reaction under mild conditions in moderate yields. The reaction mechanism was also proposed. Some of the 2,4-substituted pyrazolo[1,5- a ]pyridines display blue fluorescence not only in dilute solution but also in the solid state.
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