Synthesis and optical properties of novel compounds containing carbazole and 1, 8-naphthalimide groups
作者:Guo-Liang Feng、Shun-Jun Ji、Li-Jun Geng、Bing Bian、Yu Liu
DOI:10.3184/030823408x304041
日期:2008.3
A series of novel carbazole-naphthalimide compounds with moieties capable of carrier-balance and electroluminescence were synthesised and characterised, and theirs luminescent properties had been studied.
Synthesis of 4-amino substituted 1,8-naphthalimide derivatives using palladium-mediated amination
作者:Cassandra L. Fleming、Trent D. Ashton、Frederick M. Pfeffer
DOI:10.1016/j.dyepig.2014.05.006
日期:2014.10
Successful amination of 4-bromo-1,8-naphthalimides with ‘lengthy’ imide N-functionality has been achieved using a general palladium mediated approach (conventional thermal protocols were sub-optimal). Only readily available Pd/ligand combinations were considered and the resulting Buchwald–Hartwig procedure using Pd2(dba)3, Xantphos and Cs2CO3 is high yielding, relatively mild (40–80 °C, 24 h, yields
使用通用的钯介导方法(常规热方案次优),已成功实现了带有“长”酰亚胺N-官能团的4-溴1,8-萘二甲酰亚胺的成功胺化。仅考虑了易于获得的Pd /配体组合,并使用Pd 2(dba)3,Xantphos和Cs 2 CO 3进行了Buchwald-Hartwig程序具有较高的收率,相对温和(40–80°C,24小时,收率50–90%),仅需要适量过量的胺(3.0当量),并与其他酰亚胺N取代基同样有效。这样,该协议是对现有方法的补充,但对于更复杂的基材而言,该协议是优越的。在这里,我们将这种Pd介导的方法与最常用的方法进行比较,并通过合成许多新的高度荧光的4-氨基萘酰亚胺进一步证明其实用性。
<b>Quantitative and systematic designing of fluorophores enables ultrasensitive distinguishing carbonyls</b>
The well explored fluorescent reagent NH-4 could exhibit a high fluorescence yield and excellent reactivity towards carbonyl species, which opened up a new efficient way to develop fluorophores for the determination of trace molecules.
classical AIEgen) and naphthalimide (NI, a popular fluorophore with ACQ characteristics) were connected through non-conjugated linkages and conjugated linkages. We showed that the nonconjugated-linkage of TPE to NI fragments leads to substantial PET in molecular aggregates and ACQ. In contrast, the conjugated connection between TPE and NI moieties results in the AIE phenomenon by suppressing twisted intramolecular
Microwave-assisted synthesis and evaluation of naphthalimides derivatives as free radical scavengers
作者:Ye Zhang、Shaobo Feng、Qiang Wu、Kai Wang、Xianghui Yi、Hengshan Wang、Yingming Pan
DOI:10.1007/s00044-010-9384-4
日期:2011.7
A facile and efficient microwave-assisted reaction of 1,8-naphthalicanhydride derivatives with primary amines, leading to the synthesis of 1,8-naphthalimides, has been developed. Subsequently, the free radical scavenging properties of the 1,8-naphthalimide derivatives were evaluated against 2,2-diphenyl-1-picrylhydrazyl (DPPH•). The results showed that the scavenging activities of compounds 2a, NBNA