Regioselective Synthesis of Emission Color‐Tunable Pyrazolo[1,5‐a]pyrimidines with β,β‐Difluoro Peroxides as 1,3‐Bis‐Electrophiles. - Ma, Yangyang; Chen, Yuanjin; Lv, Leiyang; Li, Zhiping (Advanced Synthesis & Catalysis, 2021)