Synthesis of Thermally Stable Acylamino-Substituted Bicyclic Dioxetanes and Their Base-Induced Chemiluminescent Decomposition
作者:Nobuko Watanabe、Yusuke Sano、Haruna Suzuki、Masatoshi Tanimura、Hisako K. Ijuin、Masakatsu Matsumoto
DOI:10.1021/jo101114b
日期:2010.9.3
charge-transfer-induced decomposition (CTID) to emit yellow−orange light. The chemiluminescence efficiencies ΦCL for dioxetanes 2 ranged from 10−6 to 10−2. On the other hand, dioxetane 4 bearing a 4-(benzothiazol-2-yl)-3-hydroxyphenyl moiety showed chemiluminescent decomposition with high efficiency (ΦCL = 0.15) comparable to its oxy-analogue 26. Prominent characteristics for CTID of the present dioxetanes were that
羟基芳基取代的二恶丁环2 - 4与吡咯烷环稠合的有选择地由相应的二氢吡咯的单氧合合成5 - 7。这些N-酰基氨基取代的双环二氧杂环丁烷在热方面非常稳定,据估计2a和2b在25°C下的半衰期为32和34 y。当在DMSO中用TBAF(氟化四丁基铵)处理时,这些二氧杂环丁烷经历了电荷转移诱导的分解(CTID),发出橙黄色的光。化学发光效率Φ CL为二恶丁环2介于10 -6至10 -2。在另一方面,二恶丁环4轴承4-(苯并噻唑-2-基)-3-羟基苯基部分显示出与高效率的化学发光分解(Φ CL相当于其氧类似物= 0.15)26。用于本二恶丁环的CTID突出特征是,所述Ñ酰氨基团影响的化学发光的颜色以及分解速率ķ CTID,而且一个Ñ酰基取代基可以决定性地影响单线态化学效率,作为用于观察2b的情况。