PENTA-SUBSTITUTED TETRAHYDROPYRIMIDINES WITH AGGREGATION-INDUCED EMISSION CHARACTERISTICS AND PREPARATION METHOD AND USE THEREOF
申请人:Zhu Qiuhua
公开号:US20140051855A1
公开(公告)日:2014-02-20
The present invention provides a series of penta-substituted tetrahydropyrimidines with aggregation-induced emission (AIE) characteristics and preparation method and use thereof. The AIE penta-substituted tetrahydropyrimidines have structures shown as formula (I). R
1
is selected from a group consisting of linear or branched alkyls and substituted alkyls. R
2
and R
4
is respectively selected from a group consisting of linear or branched alkyls, substituted alkyls, cycloalkyls, substituted cycloalkyls, aryls, substituted aryls, polycyclic aryls, substituted polycyclic aryls, heterocyclyls, substituted heterocyclyls, aromatic heterocyclyls and substituted aromatic heterocyclyls. R
3
is selected from a group consisting of aryls, substituted aryls, polycyclic aryls, substituted polycyclic aryls, aromatic heterocyclyls and substituted aromatic heterocyclyls. The penta-substituted tetrahydropyrimidines can be prepared by multi-component reactions (MCR). There are 1˜3 aryls in the structure of the penta-substituted tetrahydropyrimidines. The penta-substituted tetrahydropyrimidines possess strong AIE properties and can be used for preparing organic electro-luminescence or photo-luminescence devices, or chemical and biological fluorescent sensors or probes.
US8906927B2
申请人:——
公开号:US8906927B2
公开(公告)日:2014-12-09
A New Series of C-6 Unsubstituted Tetrahydropyrimidines: Convenient One-Pot Chemoselective Synthesis, Aggregation-Induced and Size-Independent Emission Characteristics
作者:Qiuhua Zhu、Lan Huang、Zhipeng Chen、Sichao Zheng、Longyun Lv、Zhibo Zhu、Derong Cao、Huanfeng Jiang、Shuwen Liu
DOI:10.1002/chem.201203012
日期:2013.1.21
A newseries of C‐6 unsubstitutedtetrahydropyrimidines 6 have been directly synthesized via a convenient urea‐catalyzed chemoselective five‐component reaction (5CR) under mild conditions. Compounds 6 show typical aggregation‐induced emission enhancement (AIEE) characteristics because they are practically no emissive in solution but emit blue or green fluorescence in aggregates with fluorescence yield