New indole-containing luminophores: convenient synthesis and aggregation-induced emission enhancement
作者:Qianqian Li、Shanshan Yu、Zhen Li、Jingui Qin
DOI:10.1002/poc.1461
日期:2009.3
A series of new indole‐based luminophores (IIa–d) were conveniently synthesized through Ullmann reactions. They were well characterized by spectroscopic analyses and exhibited aggregation‐induced emissionenhancement (AIEE) properties. By simply changing the aromatic moieties in IIa–d, their maximum emission wavelengths could be well‐tuned from 340 to 400 nm. The obtained experimental results, including
The simultaneous construction of both rings of indole from primary amines and MBH acetate of cyclohexenone is established. This method employed montmorillonite K10 as a cheap catalyst and diethyl carbonate as a green solvent. The scope of the reaction was scouted, in which 37 N-substituted indoles including 1,1′-bisindole were obtained.