期刊
NEW JOURNAL OF CHEMISTRY
卷 41, 期 21, 页码 12481-12489出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7nj02396k
关键词
-
资金
- Vietnam National Foundation for Science and Technology Development (NAFOSTED) [104.01-2016.59]
An efficient deep eutectic solvent-based synthesis of pyrroles under ultrasound irradiation has been developed to provide a significant improvement of the yield up to 99% in a short reaction time. The synthesis of pyrroles is highly atom-economical, producing water as the sole byproduct. In addition, [CholineCl][ZnCl2](3) is easily synthesized from commercially available choline chloride and zinc chloride via a cost-effective and environmentally benign pathway. The obtained [CholineCl][ZnCl2](3) has been characterized by FT-IR, H-1-NMR, C-13-NMR, HRMS (ESI), Raman, and TGA. Five new pyrroles are synthesized by the current method. Moreover, [CholineCl][ZnCl2](3) could be reused up to four times without significant loss of catalytic activity.
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