Novel ionic liquid [Et3N-SO3H][MeSO3]: Synthesis, characterization and catalytic performance for the synthesis of 14-aryl-14H-dibenzo[a,j]xanthenes

Bulletin of The Chemical Society of Ethiopia

M. S. Takallo¹ 

关键词: Protic acidic ionic liquid;    N;    N-Diethyl-N-sulfoethanaminium methanesulfonate ([Et3N-SO3H][MeSO3]);    2-Naphthol;    Arylaldehyde;    14-Aryl-14H-dibenzo[a;    j]xanthene;   

DOI  :  10.4314/bcse.v33i1.7

学科分类：化学（综合）

来源: Chemical Society of Ethiopia

【 摘 要 】

The main aim of this work is introducing a novel protic acidic ionic-liquid catalyst for organic synthesis. Thus, N , N -diethyl- N -sulfoethanaminium methanesulfonate ([Et₃N-SO₃H][MeSO₃]) was synthesized by the reaction of triethylamine with chlorosulfonic acid, and then with methanesulfonic acid. The structure of this novel protic acidic ionic liquid was identified by FT-IR, ¹H NMR, ¹³C NMR and mass spectral data. Its catalytic activity was examined for the solvent-free reaction of 2-naphthol with arylaldehydes to provide 14-aryl-14 H -dibenzo[ a , j ]xanthenes. [Et₃N-SO₃H][MeSO₃] efficiently catalyzed the reaction, and the products were obtained in high to excellent yields and in short reaction times.

【 授权许可】

Unknown