Synthesis of Chrysenopyrazoles and Fluorescence Properties
Chrysenopyrazoles were synthesized from o-hydroxyacetophenones and aryl halides via four steps.Intermediate 3-phenyl-4-arylpyrazoles were obtained in good yields.Irradiating 3-phenyl-4-arylpyrazoles, dehydration product chrysenopyrazoles and dehydrogenation product hydroxy-chrysenopyrazoles were obtained in the meantime.The fluorescence properties of chrysenopyrazoles were determined, and hydroxy-chrysenopyrazolesemit yellowish-green light in alkalinity due to excited-state intramolecular proton transfer (ESIPT).
Chrysenopyrazoles ESIPT dehydration dehydrogenation fluorescence properties
Chenchen Li Zunting Zhang Zhang Jin Longzhu Liu Tuo Ma
Key Laboratory of the Ministry of Education for Medicinal Resources and Natural Pharmaceutical Chemistry, National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest of China, and School of Chemistry and School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi”an 710062, P.R.China
国内会议
上海
英文
44-46
2015-04-17(万方平台首次上网日期,不代表论文的发表时间)