Synthesis of 2,6-Disubstituted-1,3a,6a-Triazapentalenes and Their Fluorescence Properties
作者:Akane Mera、Masami Ito、Atsushi Nakayama、Kosuke Namba
DOI:10.1246/cl.170078
日期:2017.4.5
The substituent effect at the C6-position of 1,3a,6a-triazapentalenes was elucidated. Synthesis of C6-substituted-1,3a,6a-triazapentalene was established by an epoxide-opening reaction of the 1,2,3-triazoles followed by elimination of the resulting hydroxy group. The electron-donating substituent induced a longer-wavelength shift of the fluorescence maximum and change of the fluorescence quantum yield
阐明了 1,3a,6a-三氮杂戊烯在 C6 位的取代作用。C6-取代的-1,3a,6a-三氮杂戊烯的合成是通过1,2,3-三唑的环氧化物开环反应然后消除所得羟基来建立的。给电子取代基引起荧光最大值的较长波长位移和荧光量子产率的变化,这取决于 C2 取代基。另一方面,吸电子基团淬灭了 1,3a,6a-三氮杂戊烯的荧光。