Synthesis of Indeno[1,2‐d]pyrimidin‐5‐Ones and Their Fluorescence in Solid State |
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| Authors: | Masayori Hagimori Kenichirou Yokota Ai Fukuda Yasuhisa Nishimura Ryousuke Satodani Bo‐Cheng Wang Ho‐Hsiang Wei San‐Lang Wang Yasuhiro Shigemitsu Yoshinori Tominaga |
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| Institution: | 1. Faculty of Pharmaceutical Sciences of Nagasaki International University, Sasebo, Japan;2. Faculty of Environmental Studies, Nagasaki University, Nagasaki, Japan;3. Department of Chemistry, Tamkang University, Tamsui, Taiwan;4. Technology Center of Nagasaki, Omura Nagasaki, Japan |
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| Abstract: | New fluorescent compounds, 2‐substituted indeno1,2‐d]pyrimidin‐5‐ones ( 3a , 3b , 3c , 3d ) were synthesized in good yield by the reaction of 2‐bis(methylsulfanyl)methylene]indan‐1,3‐dione ( 1 ) with the respective amidine derivatives guanidine carbonate ( 2a ), acetamidine hydrochloride ( 2b ), S‐methylisothiourea sulfate ( 2c ), and S‐benzylisothiourea sulfate ( 2d )]. 4‐Substituted amino‐2‐aminoindeno1,2‐d]pyrimidin‐5‐ones ( 7b , 7c , 7d ) were synthesized by a one‐pot reaction of 1 , 2a and the respective amine compounds ( 4b , 4c , 4d ) in pyridine. These fused pyrimidine derivatives showed fluorescence in the solid state. |
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