Lactic acid as an invaluable green solvent for ultrasound-assisted scalable synthesis of pyrrole derivatives.
Lactic acid as an invaluable green solvent for ultrasound-assisted scalable synthesis of pyrrole derivatives.
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DOI:
10.1016/j.ultsonch.2015.01.002
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发表时间:
2015-09
影响因子:
8.4
通讯作者:
Shi‐Fan Wang;Chaowen Guo;Kexu Cui;Yan-Ting Zhu;J. Ding;Xin Zou;Yi-hang Li
中科院分区:
文献类型:
--
作者:
Shi‐Fan Wang;Chaowen Guo;Kexu Cui;Yan-Ting Zhu;J. Ding;Xin Zou;Yi-hang Li
Lactic acid has been used as a bio-based green solvent to study the ultrasound-assisted scale-up synthesis. We report here, for the first time, on the novel and scalable process for synthesis of pyrrole derivatives in lactic acid solvent under ultrasonic radiation. Eighteen pyrrole derivatives have been synthesized in lactic acid solvent under ultrasonic radiation and characterized by1H NMR, IR, ESI MS. The results show, under ultrasonic radiation, lactic acid solvent can overcome the scale-up challenges and exhibited many advantages, such as bio-based origin, shorter reaction time, lower volatility, higher yields, and ease of isolating the products.