期刊
CHEMPHOTOCHEM
卷 -, 期 -, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cptc.202300111
关键词
aggregation-induced emission; push-pull systems; fluorescence; solid-state emission; aroyl-S,N-ketene acetals
Donor-substituted aroyl-S,N-ketene acetals were rapidly synthesized by nucleophilic attack and decarbonylation, followed by addition-elimination reaction. These compounds exhibited intensive solid-state emission and pronounced aggregation-induced emission (AIE) characteristics with high quantum yields. By changing the base, enlarged aroyl-S,N-ketene acetal bi- and trichromophores were easily accessible.
Donor-substituted aroyl-S,N-ketene acetals can be rapidly obtained by nucleophilic attack of triethylamine at the acid chloride with concomitant decarbonylation followed by addition-elimination reaction of in situ generated enamines. These potent chromophores exhibit intensive solid-state emission and pronounced AIE (aggregation-induced emission) characteristics with high quantum yields. By changing the base to diisopropylethylamine, enlarged aroyl-S,N-ketene acetal bi- and trichromophores are easily accessible.
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