One-pot syntheses of blue-luminescent 4-aryl-1<i>H</i>-benzo[<i>f</i>]isoindole-1,3(2<i>H</i>)-diones by T3P<sup>®</sup> activation of 3-arylpropiolic acids
作者:Melanie Denißen、Alexander Kraus、Guido J Reiss、Thomas J J Müller
DOI:10.3762/bjoc.13.231
日期:——
situ activation of 3-arylpropiolic acids with T3P® (n-propylphosphonic acid anhydride) initiates a domino reaction furnishing 4-arylnaphtho[2,3-c]furan-1,3-diones in excellent yields. Upon employing these anhydrides as reactive intermediates blue-luminescent 4-aryl-1H-benzo[f]isoindole-1,3(2H)-diones are formed by consecutive pseudo three-component syntheses in a one-pot fashion. The Stokes shifts correlate
用T3P®(正丙基膦酸酐)原位活化3-芳基丙酸会引发多米诺骨牌反应,从而以优异的收率提供4-芳基萘[2,3-c]呋喃-1,3-二酮。在将这些酸酐用作反应性中间体后,通过一锅法连续的伪三组分合成形成蓝色发光的4-芳基-1H-苯并[f]异吲哚-1,3(2H)-二酮。斯托克斯位移与Hammett-TaftσR参数具有极好的相关性,表明在振动松弛的激发单重态下共振稳定度得到了扩展。