Synthesis and photophysical activity of 6-substituted isocoumarins

被引：1

作者：

Fedina, Elena S. ^{[1
,2
]}

Arsenov, Mikhail A. ^{[1
]}

Isakovskaya, Kseniya L. ^{[1
]}

Muratov, Dmitry, V ^{[1
]}

Loginov, Dmitry A. ^{[1
,3
]}

机构：

[1] A N Nesmeyanov Inst Organoelement Cpds, Russian Acad Sci, Moscow 119334, Russia

[2] Sirius Univ Sci & Technol, Soci 354349, Russia

[3] G V Plekhanov Russian Univ Econ, Moscow 117997, Russia

来源：

MENDELEEV COMMUNICATIONS | 2024年 / 34卷 / 01期

基金：

俄罗斯科学基金会;

关键词：

C-H annulation; cross-coupling; isocoumarins; luminescence; homogeneous catalysis; ALKYNES; ACIDS;

D O I：

10.1016/j.mencom.2024.01.032

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

6 -Substituted isocoumarins with aryl, alkynyl, and diphenylamino substituents were synthesized from 4-bromobenzoic acid by annulation with tolane via rhodium -catalyzed C-H activation followed by palladium -catalyzed cross -coupling reactions. The compounds obtained exhibit luminescence emission in the violet-blue region (370-480 nm) with quantum yields up to 95% (for the diphenylamino derivative). Aggregation of biphenyl -substituted isocoumarin leads to a strong batho chromic shift (by 80 nm) of emission as a result of intermolecular p-p stacking interactions.

引用

页码：107 / 109

页数：3

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